i'm in tears! my five year old son went to a montessori school this past year and will be entering K this fall. i worked with him for a year before montessori getting him potty trained, and he didn't become fully so until 2 days before school started. after that, he did both #1 and #2 fine, always telling me when he had to go. he had no issues. now that the summer is here, he's all of a sudden regressing to doing #2 in his underpants. in the beginning it was once a week. and this past week, it's been once a day. and TODAY he went twice in his underpants. i don't understand what happened to him; he was the one i least worried about. my daughter is just learning to pee in the toilet and she's watching me getting frustrated with my son. i ask him again and again if he wants to be a baby or a big boy. b/c of this week, i actually had to put a diaper on him, b/c i can't clean another gross underwear. i really don't know what's going on, and i'm in tears b/c i don't know how to help him. the scolding, the threats, even the logical conversation we have a few hours after the accident, has not prevented him from stopping. and he cries when he poops in his pants, so i know he's not enjoying this. has anyone else gone through this?