Hi! Potty training- not my favourite aspect of the job.I'd definitely try rewarding him for dry bums and not going on the potty. It's time that he acknowledges the act of "going" in the proper place. it sounds that he might be playing you a bit and taking the path of least resistance. he's just so used to having a dirty diaper that he doesn't care. I like to give out stickers instead of candy because it's something visible that they can continue seeing and be reminded of. I give the child a square of construction paper that is kept in the washroom for the day. Each time they have a clean bum they get to pick a sticker from our special sticker box. I try to change up the stickers according to what the child likes ie dogs, trucks etc. At the end of the day they get to bring their sticker card home to mom and dad. That being said, I've also, encountered children who didn't care about reward. For them it was the whole extrinsic reward versus intrinsic reward thing. They had to want to do it to please themselves. Hang in there though. As frustrating as it will come.