My son is 3 and goes to playgroup twice a week. We have been potty training him for 8 months and he is essentially dry except with poos. we have got away with it at playgroup for last 2 months but yesterday he pooed in his pants there and am worried he will lose his place. if we dont catch him doing it, he will just poo in his pants unless we plonk him on his potty. any suggestions ? feel like we have tried everything.