In the medicine cabinet of my childhood home, there was a small slot at the back that was designed for disposing of used razor blades. My sister and I discovered it one day and were amazed. We thought it was a coin slot, and that if we put pennies in it, gumballs would come out from somewhere. We put tons of coins down it, and ran to various places such as the heating vent to see if a gumball came out. Then we started putting hand writted notes down the slot. Somewhere in the inner wall of that bathroom is a lot of money and funny messages, wonder if they will ever be discovered?
A childhood belief about bathrooms

others believed things like this
- i used to believe that the "coin wash" was to clean my dirty pennies.— rmutt
- When my brother was 5 I use to swap a $5.00 note for lots of coins because he thought that I had more money— MATT NEWTON
- I used to belief sloths lived in trees outside my childhood home. My older sister told me so.Anon
- I used to believe that coin change could turn into actual paper money if you left it alone for a long time. — Marcus O
- I used to believe my middle name was and. At age 12, I discovered that it was actually "ann".Anon
- I thought it was against the law to carry around a lot of money unless you were putting it in the bank.Anon