Sam's questions...

I was driving down the street, and Sam asked me a question. My answer was: "I don't remember on top of my head." His reply were: "How about on the bottom of your head?" No, there either. On the backside? On the front? On the Left? On the right? I just had to let him know that I did not have the answer anywhere at the time. I don't know if he was serious, but he sure sounded serious.