I'm at a loss on what to do with ds 4yr next week. He has been toilet trained from 2.5 and no problems to speak of. Until now. he has been attending pre school since last September and in the last 4 weeks has been pooing in his pants. Whe I ask him why, he says "I don't like toilets, it's cold" or "it's an accident", neither of which is true. I don't know how to stop this happening when I'm not there to prevent it. Any tips would be greatly appreciated.