Nope just makes him weird
Only if he says "WoooooF! right afterwards.
Not even if he felates the dog. On the other hand, state and/or local laws might, in that event, make him a criminal.
No I would only worry if he was into beastality or gay if he slipped the dog his toung ewww.giving a smooch on the mouth is bonding in dog talk
Uuh no? It makes him a weirdo .-.
No I wouldn't say so! The dog though maybe? He could have tried to bark angrily firmly indicating thereby, his sexuality!
Unhygienic? Yeah, a little.
Gay? Not at all.