Because it's awkward to do in public (yes, people can and do give you dirty looks for this), I prefer to swallow gum instead of spitting it in a trash can. This started at a young age.
My parents told me if I continued to swallow the gum, it would "gum up" my insides and my body would stop functioning properly.
...
For some reason, I didn't care enough about this to stop swallowing my gum.
A childhood belief about chewing gum

others believed things like this
- I used to believe that you shouldn't swallow gum because it would stick to you heart and make it stop beating.Anon
- I used to believe that toilets would open and swallow you up because they got dirty!!— swallowing toilet
- When I was young, I used to belive that
if you pushed the stop button in the bus it would stop for good.— Tom (Norway) - When I was young, I thought that rice was actually ants eggs! Didn't stop me from eating it though (: -@— Doh!
- my mom told my sister and I that if you swallow gum, it won't leave ur stomach for 7 years.— Victoria
- My grandpa told me when I was little that if you swallow chewing gum your butt will be sticky— Lili