Mischa Barton can understand why she’s still single – because her clumsy habits make her “an embarrassment” to be around. The actress is regularly falling over and bumping into objects, and she fears her haphazard ways scare off potential suitors.She tells Britain’s OK! magazine, “I’m ridiculously clumsy, you’d never want to date me. I’m an embarrassment. I wouldn’t even know where to start with telling you things that I’ve walked into.” And Barton is convinced her clumsy ways make her a special target for the paparazzi: “I think that’s why the paps love me, they know I will end up on my a** looking silly. I’m constantly bruising myself and grazing knees. A total klutz.”