Aww, well even though it does annoy me when new member's reach out for help and then disappear??? I suppose "whatever??" But, since folk's don't want to let it go ... well it's my turn. Hopefully w/o being an A-hole??
On "here," Boxer's like this one are "Thankfully," pretty rare. Boxer's that actually show up that bite"" Show up maybe once or twice a year?? But , most likely due to the "Shutdown," and the resultant lack of socialization ... that maybe changing going forward ... I don't know??
But on Gertmanshepardforum?? LOL, dog's like this are pretty much par for the course! I have no idea how "GSD's" were wayyy back in the day?? But as of 2005 ... I'm pretty sure they are not the same and more like mine was??? They are bigger and well "some of them are full of attitude! And take a year or more to before one become's fully aware that they have a "issue here?? And then "some of them," take that ... "wary of stranger's to the Nth degree! Apparently always being in the top four, of most popular Dog's in American, has it's "Blow Back???"
On GSD Forum there were a few of "us," (on our own) that dealt successfully with dog's like this. And we explained "what we did." And while not that hard, it did require discipline and commitment on the part of the Dog's Handler.
And someone labeled them "Bubble Dog's??" A Dog that need's a muzzle to be (safe in public) and the owner's keep a Protective Bubble of Distance around the dog, for a period of time. Eventually you can drop the muzzle. After you have spent the time to show the Dog "What You Want," and how he is expected to behave around people! You teach/show him, "What you expect and how to "Make Better Choices." The "Bubble Dog Protocol."
And it's best accomplished ... "By Keeping People Out Of His Face!" IE ... "you don't have to like anyone Dog, but you do have to be Civil! And there is only one rule, in "Bubble Dog Protocol, not "One Bite Dog!"
You can't insure that by taking "Silly Chances??" So yeah with Dog's like "this," you can't break the rules! So it would be ... "uh unwise to use ,"Treat's," to trick the dog into having a Stranger violate there space. For the most part such a dog won't take the treat anyway?? And if he "actually does??" He'll focus on the treat ,gulp it in a second and then "look Up" and See some A-Hole in his face, WTH ?? Where did this guy come from?? And wham ... you messed up! Cuz if the Dog does take the "treat??" He focus on that and forget's about the person ... for a second. Eat's the treat and look's up and see some tool in his face??
And no less than Micheal Ellis, (A Mal Guy) took note of that phenomenon, during a training session! Some owner's had treat's and some did not?? And one particular Mal, took exception to "not getting a treat!" And he struck that guy! ME no longer uses treat's in dealing with Dog's and People ... Lesson Learned. With a "True Bubble Dog Protocol," you maintain a "Five Foot Distance," from stranger's, if you stop and talk to a stranger?? The Dog stops or you tell him stay and you shield him. The dog is "behind you and still," ... do that enough and the dog will "get It."
People are not allowed in his freaking face, period end of story! And after a while ... he will get that. And after a while (no less than three month's of Walking Him and Ignoring People ... I think??" He will grow to understand ... that you have his back. And coincidentally ... he will have your's as it happened with me.
And a "Prong Collar," for this would be a "pretty choice for most people, for a dog with Aggression Issue??" A "Prong Collar," can "Put Drive into a Dog, or take Drive out of a Dog??
And yeah, that sound's "complicated," I would imagine?? But easy to understand, in IPO/ PPD/MWD or LE ... what type of Collar do they use?? A "Prong Collar," but those guy's know what they are doing and they are doing much more than just training the dog to walk on a loose leash.
It's just not the proper "Tool," for this type of issue. A much better choice for this issue would be, a properly used Slip Lead Leash or simpler still a Dominate Dog Collar ... properly used. Another story ...
And of course ... nothing wrong with, "finding a trainer??" Assuming the owner can "afford one," and if they do?? Said trainer know's what they are doing??
That option did not work for me with my Rocky cuz ... well at the time. I "Trusted No One With My Dog!" He had "People and Pack Fight Issues!" And yeah, the stitches in my hand proved I did not have the "Pack Issues Solved??"
But hey that was an in house deal so whatever. But the people thing yeah that was a "Biggie!" And my Rocky also had a "proven," under carefully conditions ... "dislike for toddler's?! But you know even still ... long story short "crap happen's??" And when confronted by a "Toddler!" In an out of site "Place," and approached by said "Toddler??" It was "Rocky's" call (GrandMa) fell asleep and the toddler went outside where Rocky was!!! She and the Toddler were not "suppose to be there," ... but crap happen's!
Rocky was out back in "Place," and the "Toddler Approached??" It was now his call so you know "what to do??" He is supposed to hold "Place," and he is "also," suppose ... "not to Bite" and where was Dad?? It was his call and he "chose to walk away," from the approaching Toddler" ie ... "Make Good Choices Dog!"
I was finished helping my client and freaked out when I, came out of the Bathroom and looked for the toddler??! And saw no toddler and Grandma asleep!! OMG ... I darted out back ... excepting to see a scene of horror! But ... first thing, I saw was the Toddler unharmed and then I looked where Rocky ... "should have been," and did not see him??
It was his call ... "I'm suppose to stay in Place, but I don't much care for toddler's! But I see no "Dad," for direction and I am not "suppose to bite??" And a "toddler," is not really a threat (although I don't like them!) So perhaps ... the best choice is to walk away?? After my freak out I looked again and Rocky "was," there about 15 feet away from the Toddler. And yeah he broke "place!" But he did Good! Make good choice's dog, he did good (he did as I showed him) don't bite stranger's! Not"everyone," is a threat?? He did his part and I had done mine, which was "to respect his choice, not to be bothered by people." Not every dog enjoy's the company of strangers ... apparently???
Sooo "this," is not a "How To," just my observation's of what I had actually done?? And even at that it took me "year's," to understand how and why it worked?? Larry Khron, in one of his numerous Youtube Clip's/Lecture explained to "me," what I had already done and why it worked??? I was stunned??
And there was no use of "Treat's," and most importantly ... never a need for correction's?? If you have to "Correct the Dog??" You have already screwed up ... either you were to slow in moving on are you let someone get to close! My Dog, my responsibility, you keep your distance (Five Feet) worked for us "we'll keep our distance you keep your's ... "Thank You For Understanding!" If you are not a "Pro," and I am not! You can't really "Read," a dog?? And you know ... "lacking that ability," it is simply just best to "Keep People Out Of The Dog's Face!" They can't bite people ... if they can't get to them. And after a while ... you will understand what the dog "look's like when he is "Fine" or "Chill," if you will.
Most folk's respected ... "fear of People and he is in training, to get better." But hey if they did not ... respect that as an answer ... My dog would be the least of there problem's ... I don't play! Good time's Good times.
But back on point and back to "Find a Trainer." A competent qualified trainer, is very expensive, well in America anyway and even still some of them suck! There is no shortage of stories of "Dog's" that have been thru "several Trainer's before finding the "Right One!"
"And a full on Board and Train is expensive!" But one can "Break It Down," and having a "Trainer," in private session's can be reasonable. The full deal Board and Train total Rehab to, solve all this dog's Issues," would be expensive, I would imagine?? But "Baby Step's," is a viable option. But If as was stated the OP can't even "Walk The Dog??"
Yeah NO, that is just not gonna work?? As "Bubble Dog, 101," your gonna have to "Walk Your Dog," ... a lot! As in that is pretty much all you do ... for quite a while. You go out and walk (your dog/muzzled for a while) and you find people to "Avoid and Ignore!" No contact with the dog and the public. The Dog's Job is to Watch Observe and Learn To Ignore. A "mobile," Place Command if you will. There are a few more detail, but that's the essence.
Hiring a trainer to teach one how to walk there dog ... is not that expensive and if you want, throw in training him to "ignore other dog's??" Cuz, that is also less expensive than training him to get along with other dog's?? IE you don't need a "pack of trained dog's."
Now it turn's out that my Rocky was actually excellent with other dog's?? But that was just an observation on my part after the fact. Cuz, I did not really care about other dog's. Being civil and ignoring them was more than "Good Enough For Me." But sigh ... on Germanshepardfroum ... Rocky was one of the few GSD's that did not need to be "Muzzled," and "Drugged," just to go to the Vet! Yep being able to do that with a GSD ... is a big deal, apparently??
I got more of course but "this," is the essence of what "We," did.