[CENTURION]

There's probably a worse one that I can't recall at the moment, but a recent one:

At our 2013 regional, a newer student was tweaking our autonomous code in the pit. We had our final practice match for the day coming up, and the new code was put on the robot, without being checked or tested.

During auto, the climber ran backwards. This was a half-inch ACME lead screw, running off a CIM (Don't remember what gearbox was on it). So instead of moving the climber up a bit to release another mechanism that was tied into it, it ran downwards, and kept running until it bottomed out, and then kept running some more. This also raised the robot off the ground at the front, and so it couldn't drive.

The screw warped itself pretty bad, and bent a couple 0.25" aluminum brackets by 40 or so degrees. The climber was pretty trashed. The CIM continued to run (while stalled) for the rest of the match, came back to the pit too hot to touch.

The pit crew stayed late that night, and had it running by the next morning, which was quite a feat.