Story I got told about a car plant, long closed, not far from where I live. At the end of a shift, a group of workers leaving were milling around, laughing and shouting at one lad who was perched on top of his mate's shoulders. The security guard asked one of them what all the fuss was about. The worked replied "Oh that's Wullie, it';s his stag night tonight.". The security guard smiled and waved them through.
Once out of sight, Wullie and his carrier took off their jackets revealing the complete exhaust assembly they'd had hidden up their backs (It was a small car btw),