Surgery on my spine actually. Lost my ulnar nerve basically (funny bone nerve). So I have what they call "minor clawing" of my left hand, meaning my thumb does not cross over my palm the way it used to, so I have a hard time gripping things that require a "round" grip (like a large cup), since my grip is more of a "pinching" grip. So I usually try to take it with both hands, or my right hand by reaching across, but that is awkward too. So every now and then I just try to grab the cup like I used to, and I squeeze it in such a way that it collapses, spraying the contents everywhere, with (occasional) hillarious consequences.
The best one was I was getting a drive-up order for my 4 kids and me, and I was shuttling the drinks into the vehicle and grabbed one and the top popped off and almost the entire contents of the cup (32 or 44 ounces or so) splashed back through the window and drenched the girl handing me the food. Someone behind her saw it and started laughing and I heard him fall as he slipped on the puddle there and I saw hamburger buns fly up in the air as he tossed the tray he was carrying as he fell.