The Ultimate Spam Hoax - competition
I challenge all the readers of Nemeton to come up with the stupidest and most outrageous hoax email - but of course we will not be sending them to anyone, because that is just totally and utterly dumb.
Here's my effort (post yours in the comments):
Your car is vulnerable. A new species of computer virus called RustWorm has migrated into car computer systems and mutated into nanobots and spread into the superstructure of the car. It is specially designed to unlock all your doors and make the car vulnerable to thieves. Especially if you have central locking. After that it will break your car down into its component parts and take them away to Seattle for Microsoft to turn into computer parts and complete their plan for world domination. But don't worry, because Microsoft will give you $10 if you forward this email to Bill Gates!!!
The only possible solution is to take your car immediately to a wrecker's yard and have it crushed. Forward this email to everyone in the world! (Well, okay, everyone in the world with a car.) You'll be glad you did, because only by sending this email to the whole world can we overcome the threat of RustWorm!!!!
Of course, in order to prevent anyone actually using these to spam people, they must be wildly improbable.