What scenario makes you wake up in a pool of sweat and tears?

For me it's this:

I'm desperately banging on the door of my apartment, calling my family to open (I live at the second floor), but getting no response. As I look down the stairs, something (be it zombies, a killer, ect.) is slowly walking up - coming to get me. To add insult to injury, one time i looked through the keyhole to see if anyone was inside, and there was an eye staring right back at me, which then blocked the keyhole. The monster usually gets very close before I wake up.

It can even be a dream you had only once, but made you shit yourself.