9 Stars With Weird Habits Olivia Munn rips out her eyelashes, Johnny Depp plays with Barbies By Evann Gastaldo, Newser Staff Posted Aug 5, 2012 4:41 PM CDT 7 comments Comments Actress Olivia Munn turns back for photographers at the Us Weekly Hot Hollywood Style issue event, Wednesday, April 17, 2012, in West Hollywood, Calif. (AP Photo/Chris Pizzello) (Newser) – Lots of people bite their nails, but not Olivia Munn: She plucks out her eyelashes, she told the New York Daily News this week. The odd tendency stems from a disorder called trichotillomania, the Huffington Post notes. Eight more stars with habits that are a bit strange: Johnny Depp: He likes … playing with Barbies? Jason Segel: One of the rooms in his house is "sort of dedicated to puppets," he once revealed. Jane Lynch: The Glee star used to be addicted to cough syrup. Simon Cowell: "I climb trees daily. It's like a ritual," he once said. Click for the full list, which includes one actress who used to open doors with her elbows.