You have to be careful rehoming dog's with behavior issues, reccently there has been a trend with people getting sued for dog's they rehomed with known behavior problems like biting. I'm glad that didn't happen to you, because like you said, you did warn her!
I think Bobby just needs some social skills and training and he shoud be A-OK. It isn't uncommon for dog's who aren't used to having their feet or ears messed with to growl or bite if they don't like it. It's the only way he has (or so he thinks anyway) to tell you he doesn't like something. Probably he did get away with murder so to speak in the past. Obviously that will stop now
He just needs to learn a new set of rules and go from there.
I think Bobby just needs some social skills and training and he shoud be A-OK. It isn't uncommon for dog's who aren't used to having their feet or ears messed with to growl or bite if they don't like it. It's the only way he has (or so he thinks anyway) to tell you he doesn't like something. Probably he did get away with murder so to speak in the past. Obviously that will stop now