I used to think that people were supposed to cover their mouths when they yawned to keep spiders from crawling in. This only applied at night for some reason... and I was always afraid that if I forgot to cover my mouth, a spider would hang down from the ceiling and drop into my mouth.
A childhood belief about creepy crawlies

others believed things like this
- I was told that if one doesn't cover their mouth when yawning that their soul would escape.Anon
- I used to tape my mouth shut at night in case a spider would come along and make a web in my belly.Anon
- I used to believe that if I slept with my mouth open that spiders would crawl in there and live in my stomachAnon
- I use to cover my head at night because I thought monsters would give me a bad hair cut while I was sleeping!— Amy
- I used to belive that if i put my foot in my mouth, I would get foot-and-mouth illness— Emily Sathrota
- I used to think people had a "potty mouth" if they had been drinking out of the toilet.Anon