That reminds me of my apprenticeship. I was working on a snack bar/marina complex and the branch panel didn't have any circuit labeling. My J.W. told me to just short the hot out to a solid ground, and thus identify the breaker later by seeing which one tripped. Well, I did that trick one time too many when the greasy wood floor caught fire because of the arcing ground fault I created at a floor outlet! I guess I should have connected the wire to ground with more 'authority'..or better still, I should have worked with a REAL Journeyman Wireman.
