With the help of kyoji
so i play rough with my 7 year old rott. and what i do is i put my hand on the side of his mouth and he'll d try to grab my hand (not viciously) when he does get my hand he'll give what i call a love bit because it don't hurt but when i get my hand out he'll try to bite my hand and sometimes it hurts. idk if he's just playing or do me teasing him with my hand tick him off. lol he don't growl (well he does a low growl and wags his tail so idk if that's good or bad) I don't abuse him, or hit him, in fact i walk him every chance i get and feed him well. i just harmlessly play with him and he seems to love it but idk if me putting my hand on the side of his face annoying to him or he takes it as a playful gesture. i have a 4 year old cousin who does that but he doesn't bite or anything, just seems like when i do it is when he gets so hyper or angry(?) he bites me to a point it hurts.
I prefer teaching dogs to do inhibited bite rather than not biting at all. Of course, don't allow uninvited mouthing.
Anytime your dog is putting pressure or being anything but gentle, yelp and stop the play session until they calm down. If they have inhibited bite, chances are when something happens that does make them lash out (I read a story about a service dog getting his tail shut in a car door), they won't have as damaging a bite against people. (This service dog had never had inhibited bite training and bit the handler with multiple severe bites).
Encourage respectful play!