Just Bill: Did you ever have a co-worker who was a royal PITA? We used to take sleeves and slide short pieces of bare wire into the sleeves in a certain worker's tool box. We would leave just enough open space at the ends to make it appear that the sleeves had not been messed with. When the victim was up on a ladder, in a back yard, in a blizzard, the cursing was magnificent as he tried all the sleeves in his tool belt pocket, and not one would accept the bridle wire. What fun!!!
We also made "diodes" from single lengths of bridle wire, with the insulation removed from each end, and the cathode painted on one end of the remaining central insulation section, with a silver marker. When PITA installed a ringing matrix, all the bells rang on all the lines. More fun!!!
How about taking all the 51A lamps from his tool box, and applying 24 volts, then replacing them. Nothing like trudging all the way back to the locker for more lamps as the end of the shift neared. Even more fun!!!
