At Wisconsin this year, a newer member made some tweaks to the autonomous code, but didn't have time to test them before our last practice match of the day. So the robot went on the field with the changes.
During Auto, the 1/2" ACME lead screw on our climber ran downwards, instead of up (It moves up to release some other mechanisms that are tied into it), and instead of moving a few inches and stopping, it keeps going.
The climbing mechanism itself can only move so far down before it hits another piece of the frame and stops. Well, the lead screw persuaded it to go a ways further
So, after modifying a few 3/16 connecting brackets by about 30 degrees, bending the lead screw, and immobilizing the robot by giving the climber the impression that it should attempt to stab through the carpet, the CIM stalled. And kept on stalling for the rest of the match. I believe the CIM actually survived, but it was very, very hot when it made it back to the pit.
And that, kids, is what happens when you change a '+', to a "-"