Never flick them on the nose or hold their mouth or do anything of the sort, this only causes more aggression which I am sure you have seen.
Are you trying to stop him from chewing on something he isn't suppose to?
If this is the case, give him a firm no and if he still doesn't listen coax him over with a toy or treat that is better and then pick up the thing he isn't suppose to have. This is also a way of teaching him the "leave it command", by leaving whatever he currently chewing on when you ask him to, he gets rewarded and will learn the command quickly. |