It seems that when he stopped his car to pick up tiny Chris for pre-school, he noticed an elderly woman hugging the diminutive fellow as he left the house.
"Is that your grandmother?" he asked.
"Yes," Chris said, very sweetly. "She's come to visit us for holidays."
"How nice," said Fritz. "And where does she live?"
"She lives at a place called airport," the little man replied. "Whenever we want her, we just go out there and pick her up."