My favorite right now is to make a high pitch "alllppppp" (like a puppy) when my little pup tries to play bite me. I had tried everything in the book, including flipping him over on his back, and nothing worked. I read that tip on here, did it the first time not very loud then really loud and he totally stopped! Then last night he was trying to play bite my roommate and she made the noise and he stopped.