Things get pretty wacky here at About.com's Theme Parks site as Halloween approaches. That's because things get really wacky at theme parks that host Halloween events. Universal Studios Hollywood is bringing back Halloween Horror Nights this year after giving up the ghost a few years back. At a recent audition the park held to cast actors for the event, many odd performers showed up. One of the oddest, a guy who hammers a long nail up his nose, was caught on video. Um, it'SNOT for the squeamish. I don't want to give anything away, but if you want to get truly grossed out, wait for his outrageous coup de grace at the end of the short video. I'm sure his mother is very proud.

• 2006 Halloween Events at California Theme Parks
• Universal Studios Hollywood Overview