Way back in the 90s when I was a teenager I got home from school one day right around Christmas time and discovered my father had, for some reason, locked himself in the bathroom and refused to come out. He was in there for at least an hour and when he eventually did come out he went right back in again a few minutes later, and this happened several times.
After some convincing he finally admitted that he'd come home from work and consumed an entire carton of eggnog along with a whole jar of black olives over the course of about an hour and a half and had nearly shit his pants, just barely making it to the bathroom in time.
We never did discover what had compelled him to do such a thing