Nikko is our rescue dog so not sure how he lived before us but sometimes he snaps at me or hubby. Last night Niko was laying on the couch and I wanted him to get off. (My mom was staying over and she wanted the couch) Well, I called him a few times to get down and he wouldn't. I tugged on his collar, very gently, just to nudge him to get down and he snapped at me. He's done it before if we've grabbed his collar to get him to move somewhere. (sometimes he's stubborn and when you call him he just sits there) Ok so what do I do? How do I get that to stop and what do I do when he does it? It's kinda scary. I pulled my hand back so he didn't get me and then I just told him NO NO! Other than those times we go for the collar he's not an agressive dog. Please HELP!