[Cow Bell Solo]

This year no, thankfully, but...
last year when I was teaching others the electronics I had the circuit hot but earlier that evening pulled out a pwm cable from the victor end only not the RC. So When I went to point to something my hand/arm brushed up against that pwm cable which then one of the ends touched the current that is given to the victors and poof, a mushroom cloud of blue smoke coming out of the electrical board, not good.

I did not fry the RC or anything else, just the PWM cable, check out the pictures of the cable on our website, http://www.whitebearlakerobotics.com/phooneframe.htm