As a child, nits were a common affliction in our family. My hair was very long, and it was always a real business to get them out. Because I was told they were blood-sucking creatures, I believed if they were in there too long they'd suck so much blood out of my head I'd faint.
A childhood belief about creepy crawlies

others believed things like this
- when I was young, I heard that blood had iron in it. I thought blood was red because it was rusty.— Hunter
- I used to believe that guns shot out blood because everytime somebody shot a gun in a movie you saw blood.Anon
- I believed that all of my blood was stored in the calves of my legs. — Julia
- We were always told that if we drank vinegar our blood would dry up— Mike B. London
- I used to believe that salt would dry up all of my blood because my mother told me so.— Charlotte H
- I was told when I was little that eating too much salt on your food would "dry up your blood".Anon