My 3.5 year old son has been potty trained for about 6 months now. he just started pre school 2 weeks ago and every day is having accidents. It is rare that he has a accident out side of school and has no answer for why this is happening. the school has even started taking him to the bath room ever 30 min or so and it is not helping. What can I do? He says he enjoys school and all of his friends I work full time and they are ready to kick him out if this happens I will be lost. Please help!