Banging on the pipes

In 1971 Tony Orlando and Dawn recorded a song called, Knock three times. 
In Apartment buildings this was one way for kids to communicate. The things we had to do before THE Internet. lol

My friend Martin lived a floor below and sometimes we would tap out messages. We'd use a utensil, I used a spoon.  Probably what we never thought about was...the whole building could hear us tapping out. 

The kitchen had the best pipes and that's where I remember sending messages from.  

If I got too crazy with the tapping, I'd get yelled at by my mother.

Sigh, that was a cute short and sweet memory.