Humans are supposedly intelligent beings – but an awful lot of them do an awful lot of really stupid things. On this thread, we – that means others besides just me – can share all the dozens of dumb deeds done by ditzy dum-dums. For starters, here is an assault in Salt Lake City:

Man sprays smoker in face with fire extinguisher to put out cigarette: 'You can't smoke around here'
'Mr. Extinguisher' Alex Jamison posts rambling Facebook message both apologizing and defending actions.