When I first started in Aerospace Engineering I worked in a shop that had a number of big (60" chucks) vertical turret lathes. We made compressor cases, stators, hot section components for jet and turbine engines. One day I was at the calibration man's crib, giving him the specs on a new fixture I had designed. I noticed a large (24") mic sticking out of the trash barrel. I asked him about it and he said "We've had that thing since Eisenhower was president. It must have a crack in the frame, I can't get it to stay in calibration for more than a couple of hours". One of our older machinists came up about that time and saw the big mic too. He asked the crib guy about it then fished it out of the trash with a grin on his face and left with it. I wondered what he was going to do with it but did not ask. Later that day I was at one of those vertical turret lathes, going over one of my drawings with the lathe operator. A new, green, QC inspector started walking over to get familiar with my drawings, being the new guy every one on the line was watching him. Suddenly the old machinist I metioned before started to throw a cussing fit and yelled "G... Da...It! I scapped the SOB!" Then he bounced that 24" mic off the concrete floor; BONG! That new QC guy's jaw dropped and he was speechless, he tried to talk but nothing came out. I thought he was gonna faint. He finally relaxed when he realized all the machines had stopped because everyone was laughing so hard!