I started some boxing in work in the bathroom on saturday..... (One of the last jobs) all was going well, when I had ran out of suitable phillips type screws, the nearest I could find in dia & length was an old slotted type screw.... Anyway, I had my drill fitted with a suitable bit and was pushing against the screw (as you do), and yes you guessed it, the drill bit slipped off the screw, straight into my thumb nail (I was holding the batten on the wall whilst screwing) ... It would have been too bad but I still had my finger firmly placed on the drill trigger !
What a mess !!
What a mess !!