Just about all colts that I start chew on the bit. Even for a couple of days. I know if I had to have a bit strapped in my mouth, I would be playing with it too..lol. After about day2 or 3 (depending on the horse) if I feel he shouldn't be playing with it as much as he is, I will start to move him around the round pen. Lunging and working with him like normal. So he can feel it bouncing and moving, but all the while making him think of something else..... you and what you want him to do. He'll grow used to it.
