My 4-year old knows how to pee in the potty, and does it very well. I never have trouble getting him to remember to do that. Number 2 on the other hand is a different story. For some reason, I cannot get him to poo on the potty. He will go and sit on the potty, but won't actually try. I'm concerned that this problem won't work itself out. I've been working with him for a long time with it, and it seems like nothing works. Has anyone else experienced this? If so, what did you do to fix the trouble?