The classified advertisement site built by Craig Newmark in 1995 has played host to some of the biggest pranks ever promoted online. This should come as no surprise to those who’ve actually found themselves venturing through the site at one point or another in search of employment, housing, or even sexual partners. However, due to its flawed sign-up system, Craigslist has served more as a horseplay tool than a community service platform—one that has caused serious embarrassment for several victims and placed many clowns in front of a judge or behind bars. So before going shopping for your next TV or one-night stand, you might want to familiarize yourself with these 10 Craigslist Pranks That Went Wrong.