15. Trisha Cummings, Real World: Sydney (2007-2008)
If Parisa was the boring chick in the house, Trisha had to be the bitchy one. The two mixed like oil and water, constantly arguing throughout the season. The vocal exchanges turned serious when Trisha physically attacked Parisa, which led to the latter demanding that Trisha be taken off the show. What was their big clash about? A man, of course—well, a man, and a phone. What sealed the annoyance deal for us, however, wasn't her beefing with Parisa but her complaining earlier in the season about an Asian-Australian worker in McDonalds not knowing how to speak English correctly. Apparently, Trisha forgot that she wasn't even in America. Epic fail.