cary just asked where it came from.
When I was like 6-7 we went camping in upstate new york. We rented a little motor boat for a day and went puttering around the big lake there. when it was my turn to steer, I was gleefully throwing the boat back and forth randomly, with periods of straight going to lull them into a false sense of security. I almost threw everyone out of the boat (which truth be told was my objective...)