I overheard a conversation today about how some guys were having trouble sleeping.  One suggested taking some pills, the other doesn't like medicine, well what if they were natural sleep aids, yada yada yada.  Well, me being me, I chimed in and suggested that if he didn't like medicines, I had the best sleep aid of all.  A rock.  Of course, they looked at me like I was stupid.  Who would swallow a rock to fall asleep?  Nay nay.  Let me swing the rock really hard at your head, and you will be quite naturally asleep.  They still looked at me like I was stupid.  Go figure.