Whats the stupidest thing you have done?
Mine was recently,needed to get a few hundred Euros out of my bank account to pay a bill.Had my bank card in my hand in the morning,I put it down to put my shoes on and when I had my shoes on I went to pick it up again.The only thing it wasent there

I had no I.D. to get money out of the bank any other way and I search the whole bedroom high and low for it.No luck.
Went to college that day,went about my usual business.When I came home I took my shoes off and there was the card in my shoe:o
Was late paying the bill,but I never told anyone where the card was.