So today I received a different kind of spam e-mail. It had a trivial puzzle whose answer was a discount code for one of those (probably crappy) chat-with-a-doctor-on-the-internet sites. Here's the puzzle:
Find the 6th Number...
1, 2, 6, 42, 1806, _ _ _ _ ?
I think I made a huge mistake by clicking the 'Unsubscribe' link. It might just have been a way to collect working email addresses. Oh woe is me!