L.B.
I think that Judie, Wendolyn, Mindy, and Wendy all gave you great advice. Heres a game you can make of going pee, this will also help with his aim. Put 4 or 5 Cheerios in the toilet and have him try to sink them. But really Wendolyn's right if he doesn't like being wet or mussy, he's more likely to stop. Try letting him flush after you go potty, ask him if would he like to, anyway. Show him how the toilet tank works, open it up while you flush it, but let him look at the inside and explain to him how it works first. Good Luck.