I too used to believe that when people said a quarter til or quarter after they meant the 25 mins. So I thought it only natural to say a dime til, or a dime after when refering too 10 min. increments.
A childhood belief about general

others believed things like this
- I thought that a quarter hour was 25 minutes long, since a quarter was worth $0.25.— Crystal
- I used to believe that a quarter after the hour was 25 minutes after the hour because 25 cents = a quarter.— Marni
- i used to think nickel were work more than dime cause they were biggerAnon
- my dad used to tell me that nickles were worth more then a dime cause they were bigger — brittany
- I used to believe that The Quarter moon was God's fingernail clippings— Brandon
- i used to think that a'quarterback' was some guy who ran around with a giant quarter on his back! i was dumb— :]