Dude I don't know. Maybe he never went that deep? I know he was screwing around in the inguinal area looking for nuts; I could be the bigger person and give him the benefit of the doubt saying that he likely never found the need to look into his abdomen.

However, this is a stroke of luck, and another good reason for losing that job: If I'd still been there, I would have taken him to Dr. Dickwhistle who would have invariably sent Haku home with phenobarb or some crap and told me to "wait and see."