Psycho stalker

So I watched the movie Silent Hill at my sister's house last night. It was a good movie. Kinda creepy, but not to the point where I would've been freaked out. I was going to walk home afterwards (it was like 1:00 in the morning), but my sister said she'd give me a ride. I live right around the corner from my sister, so I told her I was just going to walk. We argued about it for a little bit, and she said that if I walked, then she would drive really slow beside me. I said "If a cop drives by I'll tell them that you're a psycho stalker!" So, I ended up walking home. And she drove really slow right next to me. The whole way. Fortunately, no cops drove by.