Shweta Tiwari aka Prerna of Star Plus' Kasauti Zindagi Kay, was apparently a bully as a child. The actor spilled the beans on a television show recently. She revealed that she used to make her brother do all her work. Though of course now, Shweta says that she has mended her 'bullying' ways, but industrywallahs say, that she is quite known for picking up fights with her co-stars. Makes one wonder, if her childhood bully act has now spilled over to the sets as well!