So what's the worst nightmare you've ever had?

I can't decide between:

1. I'm in my car with my Dad, it breaks down and my auntie drives past so we go to talk to her. My Dad tells me to get back in the car but there is a man in the car waiting for me, he trys to grab me and I just manage to shut there door on him.

2. I'm in a McDonalds restaurant with my class partying on Mars, me and 2 of my friends go to take a look at the surface of Mars only to have a spaceship land infront of us. Robot Aliens get out and we run, but I trip and get dragged back into their spaceship.

Bare in mind, I had these when I was like 4-5, the first one was recurring. *Shudders*