"...they all wore bow ties."
A co-worker used to repair photocopiers for a living, and was required to wear a tie. One day, a machine started up while he was working on it, the end of his tie got caught in a roller, and started pulling him in. He managed to flail around the back of the machine and get the power plug out of the wall. Upon returning to his office, he asked his co-workers how they kept this from happening to them. One yanked his own tie - which promptly popped right off. "Clip-ons" he said.