My son is 4 in August and has been potty trained for nearly one year. However he would only pooh in a nappy and would hold it until bed time so instead of making him hold it and be uncomfortable if we were at home I would let him pooh in a nappy. a few weeks ago he used the potty no problem. so far he hasn't gone to the toilet for 3 days, what do I do? I don't want to go out and buy nappies again that will make him feel he has "won" and I have used every bribe in the book!! but also I don't want this to become an issue(which it rapidly is!). All advice will be tried and the one that works will get a toy!!!!!