One early evening, a police car pulled up in front of grandma Marge's house, and grandpa Stanley gets out. The polite policeman explained that this elderly gentleman said that he was lost in the neighborhood park and couldn't find his way home.
"Oh Stanley", said grandma Marge. "You've been going to that park for over thirty years! How could you get lost?"
Leaning close to his wife, so that the policeman couldn't hear, grandpa Stanley whispered, "I wasn't lost. I was just too tired to walk home."