When I saw a sign that said "Open 7 days", I used to get confused, because I knew the place had been open for longer than one week.
A childhood belief about in the street

others believed things like this
- I thought that "tomorrow" was one of the days of the week— Frank
- I once refused to believe in Thursday. I'd heard there were seven days in a week, but could only name six.Anon
- I always thought that after 1999 it would be 1990 again, but with different months and days of the week
— optional - I used to believe that if you sneezed with your eyes open you would die!— Becky
- I used to believe that you could break open the Television and get the toys— Certeria
- I used to believe that toilets would open and swallow you up because they got dirty!!— swallowing toilet