More - I once drilled for toggle bolts thru a ceiling to hang a 4' ft flourescent fixture. The owner had told me only minutes before which direction to orientate it. I spaced out and started hanging the fixture perpendicular to that. Had to patch 2 holes in textured ceiling. I found ceiling paint downstairs. Nobody ever noticed the patch. Once pushed my foot thru a canek ceiling tile. Caught myself hooking up the hot wire on the neutral side of a receptacle outlet. Have cracked many glass covers of customer provided light fixtures by moving my screwdrivers too fast, setting the glass down too hard, dropping the glass from my ladder, I could go on all night but I will leave this post now.