i Had one not long ago where they acctually IM'd me through facebook, live in real time. They were saying they were in london, just got mugged of all phone, id and credit cards and cash, and wanted me to wire them some money. Oddly enough I had just ate dinner with said friend about 2 hours earlier.
then another friend of ours had the same thing, except they were sending out emails to everyone about 3 weeks later. I guess my two friends had one heck of a party in the UK and forgot to invite me