I m concerned about my 3 year and 4 months old grandson who is withholding his poop. He has used the toilet on several occasions and we have celebrated this accomplishment, and even rewarded him, but the last couple of days have been really bad days. He starts walking funny (it s obvious that he s pressing his buttocks not to let his poop comes out.) But his anus gets dirty with the excrement, and we need to keep cleaning him constantly. As a result, he gets burned, and complains that his booty hurts. I also noticed that he is not constipated; it seems that he doesn t want to let it out. What shall we do? I babysit him very often because my daughter works a few days of the week. Please help!