Being on stage at Wheel of Fortune, the world's most prestigious game show, is probably a lot of pressure. All your friends back home are watching, and your hero Pat Sajak is staring down at you expectantly. But sometimes, there's just no excuse for what happens. After the jump, what may be the three worst failures in the show's history [culled from a list at Pwn The Net]. Watch, weep, and umm... sympathize? Or not.