A middle-aged man had two wives. One was old, and the other was young. They both loved him very much.
Now the man's hair was turning grey. The young wife felt unhappy about this because it made him look too old.
So every night she used to comb his hair and pick out the white ones.
But the elder wife was glad to see her husband growing grey, for she did not want to be mistaken for his mother. So every morning she used to comb his hair and pick out the black ones.
The consequence was the man soon found himself entirely bald.