Reminds me of a mate's story from years ago when he worked for BT. He needed some plastic conduit for some project or other, so ordered 3m. Chap arrives with it saying "where do you want it?", "stick it under my desk", says my mate. "ho ho ho, very funny"...
Turned out he'd not ordered 3m or whatever it was, but 3 "lots" of 100 units of 10m lengths. There were two lorry loads of the stuff outside.
Even better was ordering 500m of 5 way cable. Took ages to deliver, and when it eventually arrived, they had 5m of specially manufactured 500 way cable