It's like a cochlea, only smaller!

A friend of mine asked me to make up an advertising pamplet for a little invention he was working on (an inner-ear monitor for musicians). I found this picture, and the caption just popped into my head! - I couldn't stop laughing all day. My friend didn't catch on at first, and it was not until he made his presentation, and everybody started laughing that the penny dropped. The promotion was however a great success. And yes, he is still a friend!