I have a 2 year old son who is in the process of potty training. He started out great! loved going, told me when he had to go and wed celebrate! Now though, he'll pee on the floor, then tell me he peed... or sit there and splash in it.. It is very fristrating, and i dont know how to make it consistent that he use his potty... Also, I know it comes in time, but why is it when hes wearing pants or big boy undies he goes? (i know its like a diaper but he gets happy about wearing his undies) I totally need help!!