Back when I was still playing WoW, Huxley once rolled up a WoW character, put it into my guild and leveled it up to sixty or something before letting me know it was him. He was acting completely out of character the whole time so it caught me by complete surprise. The bell-end.

Also back when I was working in a commission sales position one of my coworkers hid in another area of the store, called our department, altered her voice, and said she was going to come in to buy our most expensive item with all of the extras and extended warranties. The poor girl who answered the phone and thought she was going to make bank was on a high for about an hour, at which point someone spilled the beans and then she was pissed for the rest of the day.