So now that buster has gotten a little older, he's into chewing everything up. We've gotten some of that bitter spray and it's helped quite a bit. The only thing he's been giving is trouble with is his chewing on us. Hes not snapping at us or trying to forcefully bite but he does tend to nip while playing or when he wants attention. I've tried the obvious telling him no and leaving him to play by himself but it doesn't seem to slow him down much? Am I going to need to tell him no and start to punish him? And if so, how should I actually go about it? I obviously would never want to hurt him but I also don't want to use his crate (I know that's a big no no) any ideas? Thanks!