What's the most Stupidist thing you done?

[Who]

OK i got my story, one time at school i had a test and didn't studied, the test time was coming, so i tough, why not hide somewhere and pretend i never came that day? so i could do the test other day, well i decided to hide in the chapel ( I go to a catholic school) inside one of those places where you confess your sins (how are they called?), but suddenly some little children and old grandmas started entering, followed by the headteacher, They all started to pray!, and i was hidden in the confess box, eventually i got caught