I was deathly afraid vampires were going to sneak into my house at night and give me the S U C C. So I used to sleep with a pillow around my neck, as if ol' Count Drac couldn't just yank the pillow away. I also fully believed vampires couldn't come inside unless invited in but that logic didn't get in the way of me still believing they were going to break in somehow.
I used to be petrified of this singing Santa thing my family had. I found a video to illustrate my point:
https://youtu.be/U3a9k5s1Iyw?feature=shared
I think something about his voice and the way his mouth moved freaked me out. We still have him too, he's actually in a box a few rooms away right now...