[smurfgirl]

Connecticut's state math team was on the way to our competition and we had been in the bus for about 8 hours when we got bored. One brilliant team member had brought along duct tape, which he removed from under his seat while he proceeded to tell us his plan... We waited until the coach of the entire team got up to use the restroom in the back of the bus, and swiftly proceeded to duct tape the door shut from the outside so that he couldn't get out. It took him a while to figure out why the door wouldn't open... But to answer the original question, my own uses for duct tape are fairly conventional. I've only witnessed the interesting displays of duct tape usage at math team.