Hi, My Stepson Has Had Two Incidents Of When Drinking

Hi, my stepson has had two incidents of when drinking alcohol he has become intoxicated and passed out and then had no control of he's bowel movements. I understand drinking so much that he has no control is not right or healthy. He does not see he has a problem, of we do. He was only drinking beer, which he consumed over a short amount of time. Regards Trudy