I was at a convention for the weekend and got a boring black lanyard. A male friend got a pink one so I swapped with him. The next day I was accosted by a fierce woman on the door of the auditorium who asked where I had got 'THAT' lanyard. When I said I'd swapped it she said I shouldn't have because it was a 'Saturday' lanyard. Annoyingly the same organisation now encourage us to reuse old lanyards 'for the environment', though with no money back if we do. Maybe an apology would be in order too!