V.T.
Hi,
I have an 18 mo. old daughter who has recently begun to throw food like crazy! It is so frustrating. My husband actually advised that maybe I should only put very small amounts on her tray and then replace it as she eats it. That has worked for the most part. She still spazzes when she's finished and tries to swipe all else off the tray, but I can usually head her off and grab her hand before she's successful and hold onto it while saying, "No, we don't throw food" while looking her in the eye. She does the same thing when she gets bored, which may be your son's issue as well. Another thing is that I make her help pick up food off of the floor. Hope that is helpful.