Near-death experiences or injuries during build season?

[CaptSafety]

While setting up a simple test rig for a gyroscope, my mentor set the rig down on the robot and turned away. Unbenounced to him, he set it right on top of exposed battery terminals which the mechanics neglected to cover. The gyroscope proceeded to catch fire and a nasty plume of smoke came from the robot. We had to ventilate the room. From then on, we checked that the battery terminals were covered.

Lesson learned; cover all exposed terminals. And make sure not to use frayed PWM cables.