Two elderly women, Mildred and Agnes, were out driving in a large sedan. As they were cruising along they came to an intersection. The stoplight was red but Mildred just went on through. Agnes thought to herself, “I must be losing my mind, I swear we just went through a red light.”
A few minutes later they came to another red light, and again Mildred went right through. This time Agnes was almost sure that the light had been red, but was really concerned that she might have been mistaken. She decided to pay very close attention to the road and the next intersection to see what was going on.
At the next intersection, sure enough, the light was definitely red and they went right through. She turned to Mildred and said, “Mildred! Did you know we just ran through three red lights in a row! You could have killed us!”
Mildred turned and said, “Oh, am I driving?”