cant help you on the boxer side of it but the male dog side of it i have always had males..and they seem to chill out ..be more settled i think b/c they are not caring about trying to go out and find some uhmm 'fun' haha
Oh lord, Samson was neutered at 6 , but it was done by the rescue before I adopted him. To be honest, in his case i doubt it changed a thing, he's Mr Laid back, so I really can't answer if there was any differrence or not.
I agree. I think it's much of an old wifes tale. Some may calm a little, but most folks that nueter later in age striclty for the calming effects are usually sadly disapointed. I really believe your dogs temperment and sourounding stimulation will not change much at all. But on the other hand, it's not that costly, may remotely help and at the same time eliminate risk of testicular cancer in an ageing dog.