And zombies. Long before zombies were some cool thing everyone talks about. Since I was about 10.
I was so scared I refused to bury dead pets anywhere near our home as a kid. I've had to suck it up for DD and her two mice who got tumours and died... But I comforted myself by the fact that zombie mice surely couldn't cause too much damage.
I love good zombie movies for this reason cos they're the only type to truly scare me.
It's more a fear of dead things not actually being dead rather than zombies specifically.