I need to do something too, DS is three next month and won't poo anywhere but nappy or underpants etc, he will do wees on potty occasionally at home and uses toilet at daycare for wees, and I think that if was in undies would get the wee thing quick, but can't cope with poo in pants everyday and couldn't do that at daycare anyway. I have tried bribery etc but to no avail, he knows the talk, "I am a big boy and big boys wear undies" but just won't poo on potty or toilet. I am sure he knows when is going to as he takes himself off somewhere usually. He used to always tell you straight away when he had done a poo in his nappy, but since starting trying to TT he doesn't, and lets it squelch out all over unless you smell it quick, which is harder for them at daycare and I feel bad they have to clean him up. His friends at daycare are toilet trained, I thought that would help but hasn't. He is nearly always dry overnight and will wee in morning.