I once crossed a hot and neutral connection in a smoke eater in a ceiling. It was dark and I was too lazy and proud of my good eye sight to get a flash light. When I turned on the breaker, immediate sparks flew out of the panel, as I jumped back and started watching the buss melt, I reached in and luckily swiped off the breaker without injury. (I of course don't recommend this!!) Was this just a faulty breaker or could the aic have been exceeded and caused the breaker to malfunction?
Needless to say, I don't try to determine wire colors in the dark anymore.
