The ‘Mean Girls’ actress was left shaken following the terrifying encounter during a break to Morocco - only to discover the weapon being brandished was fake. She revealed on her Twitter page: "Umm-OMFG! I was walking ahead with the security guard and some guy was following me, then pulled up in his car and pointed a GUN at me! "I was on the phone w/my mum and i screamed and ducked and the guy started laughing and pushed the trigger and it was a fake gun..I was crying..he scared me. (sic)" Meanwhile, 23-year-old Lindsay’s father Michael has demanded she go into rehab, insisting she needs help for an addiction to painkillers. Speaking after the actress branded him a "lunatic" over his addiction claims, Michael told X17 online: "As far as Lindsay is concerned, if she retracts her statement and goes into a rehab, I will stop. But if the lies continue and prescription drug use don`t stop. Neither will I. "As for me. I am sorry I had to talk this root, but I have tried and tried to help Linds, and I been lied about long enough. Lindsay has two weeks to get herself into a LONG TERM rehab. (sic)" Michael’s comments came after Linday branded him a "lunatic" and said she wanted to change her name. She said: "My father is a lunatic and doesn`t even deserve such a title since he`s never been around in my life other than when he`d threaten me and my family. He should be where he has always put himself after verbally abusing and physically abusing people all my life, behind bars. "So much for having a `dad`... I`m going to spend some time with the ones that love me and i love now . The next shopping spree I’m going on is for a new last name!!!"