All electrons must wear helmets, elbow pads, and knee pads before entering the house, all wiring is insulated on the inside with soft foam, and junction boxes and electrical panels have protective bumpers on all the sharp edges and corners. Even as fast as electrons run, our electrons rarely get bruised or banged up. We only had three electrons that had to get stitches last year. Of course, there's that one electron that kept getting drunk and jumping off the ceiling fan... Spent most of the year in traction after the third time he did that...