A Friday Chuckle

One day a little girl notices that her mother has several strands of white hair sticking out in contrast to her brown hair.  She looks at her mother and inquisitively asks, "Why are some of your hairs white, Mom?"  Her mother replies, "Well, everytime you misbehave, one of my hairs turns white."  The little girls thinks about this revelation for a while and then asks "Momma, how come all of grandma's hairs are white?"