Why I can't call other people stupid

This morning, I mistook the small tube of toothpaste I keep in my medicine cabinet for the cream I use to treat the dermatitis on my feet. At least my toes are minty fresh! But, see, if I called other people “stupid” for the stupid things they do, I’d have to call myself stupid as well. Stone, meet glass house.

So what’s the stupidest thing you’ve done today?