6. Snogged Her Brother - Angelina Jolie
If you're raised in a Hollywood household the chances of developing an eccentricity or two in childhood are no doubt massively increased - with Jon Voight for a father it's no surprise that this is exactly what happened to his daughter, Angelina Jolie. Jolie's strange behaviour has been noted on numerous occasions over the years. As a teenager she was known for self-harming and wanting to become a funeral director, and by the time she'd married actor husband Billy Bob Thornton the two of them had taken to wearing vials of one another's blood around their necks. Perhaps the weirdest incident - in a rather disturbing way - came in 2000 when she snogged her brother on the red carpet of the Academy Awards ceremony. Jolie's wild antics appear to have calmed down in recent years - perhaps being a parent herself has taught her that with responsibility comes a need to tone down the general weirdness.