"One-liners"

The Ten Commandments for Technicians:
        1:  Beware the lightening that lurketh in the undischarged
            capacitor, lest it cause thee to bounce upon thy buttocks in a
            most untechnician-like manner.

        7: Work thou not on energized equipment, for if thou dost, thy
            fellow workers will surely buy beers for thy widow and console
            her in other ways.