Today's lesson is always listen to your children - the lesson you learn just may make you a significant chunk of change.   A Japanese dude wanted to put something up for auction so he brought in two other dudes from the upper crustic auction houses Sotheby's and Christie's.   But how to choose between the two?   He told the two dudes to play "rock, paper scissors" and the winner could have the sale as well as the more than $2 million commission.   The dude from Christie's had listened when his 11-year-old daughter said, "Everybody knows you always start with Scissors."   The dude from Sotheby's apparently hadn't learned that lesson and chose paper.   Scissors cuts paper.   Christie's got the auction!