What is the dumbest way you've lost a cashout/game?

I'll go first. It was in the last 30 seconds of a cashout and we ended up wiping the other two teams with roughly 10 seconds left. With my friend celebrating and me stealing the cashout there's nothing but a well earned win and a devious little turret... But then our random teammate who's running M grenade launcher for some reason had an inability to blow up or take cover from the turret and ends up dying to the turret at the last second of stealing and blocks the steal with his corpse... Sadly i didn't have time to yell at him in chat since he left the second after.