We are still working on getting the Boy not to throw food.
Usually I say "no" sternly, and he looks contrite. Then we smile at each other, and we try again. If he hurls the next handful of food immediately, then I usually take that to mean he's had enough, and mealtime is over. If he carries on (and sometimes he does throw a handful of food and eat the next handful) then I let him eat until he is full.
He still throws, but I feel like I'm making headway.
The problem is, my husband cannot do stern. I came out of the shower, and heard him saying, rather camply, "Don't throw your food, you bad boy!". The Boy responded by cackling with laughter at him.
I think my husband does want to mean it, but he really struggles to sound like he means it. Every time he says "No, don't you do that!", in a very limp wristed fashion, the Boy roars with laughter at him, and sometimes, I do too. Which is very bad of me, but he sounds like he's channeling a Carry On film.
I've got a horrible feeling that I'm going to be the disciplinarian in the family in the future!