I used to believe that jaywalking was walking around naked. I think it had something to do with the phrase "naked as a jaybird."
A childhood belief about criminals

others believed things like this
- I used to believe jaywalking meant walking around naked in public (from naked as a JAY bird...)— Izzi
- I used to believe that jay walking was walking naked on the street. — Kendra
- Well I once believed that when someone was home alone, they'd walk around naked..Anon
- I used to think that a strip mall was where you shop naked.— WD
- I use to believe that a stripmall was a place where people could shop nakedAnon
- i told my mother that sex was when two people get naked and tell ghost stories.— linds