What is the creepiest thing to have ever happened to you?

Have you ever had something happened that gave you the creeps and you can't explain or perhaps read something that gave you a shiver?

My house is haunted

I see a lady in a white dress everywhere, especially when I am the only person at home.

I have heard and felt breathing on the back of my neck when sleeping, and felt something sitting on my legs when there is nothing and no-one there. There's also the constant feeling of being watched and that something bad is going to happen/has happened.

About 10:30pm at night on a fairly quiet street i was walking home and a guy in a bright yellow car pulled round the corner, swerved off hit the kerb and crashed into a lamppost. He got out his car i went over to ask him if he was okay and he was shaking saying something about "got to get back got to get back" I asked him where, he said "To 2097, my own timeline asjdbiasdb (some weird random words sounded just like gibberish) Then he ran off and collapsed a bit up the road. I phoned an ambulance and later got told he was on massive amounts of a drug called Black Mamba