LINDSAY Lohan has launched a scathing attack on her estranged father - branding him a lunatic. The Mean Girls star took to her Twitter account at the weekend to slam Michael Lohan after her gave a series of interviews in which he discussed his troubled daughters personal life. My father is a lunatic & doesnt even deserve such a title since hes never been around in my life other than when hed threaten me & my family, wrote Lindsay, who has just finished shooting the thriller Machete opposite Robert DeNiro. He should be where he has always put himself after verbally abusing and physically abusing people all my life-behind bars. Lindsay, 23, says her 15-year-old sister, Ali, is also concerned about their fathers behaviour. Its so sad to get a phone call from my baby sister just now asking, 'why is daddy doing this? Through tears. Hes crossed the lines & hurt me & my family 4 the last time, she wrote. Michael recently claimed that US TV show Entertainment Tonight is planning to air taped phone conversations between himself and his ex-wife Dina Lohan, in which they discuss Lindsays well being. SS