"I thought you should know..."

Did you sleep with someone and "accidentally" leave them with something more than a soggy, used "ribbed-for his/her-pleasure" condom?

Well, somehow Hallmark missed this market: http://www.inspot.org. Send an anonymous postcard to someone and let them know how they touched you... and you gave them the clap.

And I would certainly never suggest how something of this nature could be used as an amusing practical joke.