Suppose there is only one barber shop in your town, and it employs two barbers. One of the barbers has a nice, neatly trimmed head of hair. The other's hair is a complete mess.
Which of the two barbers should you go to and why?
A: Since there are only two barbers in town, it's safe to assume that they cut each others hair. This being the case, you should sit down with the barber with the messy hair.
