A police car pulls up in front of grandma Cohen's house, and grandpa gets out.
The polite policeman explained, "I came upon this elderly gentleman who said that he was lost in the park and couldn't find his way home. He did, however, know the address, and so here we are. Do you know this gentleman?"
"Of course, officer! It's my Morris!", said grandma Cohen. Turning to grandpa, she said, "Morris ! You've been going to that park for over 30 years! How could you possibly get lost?"
Leaning close, so that the policeman couldn't hear, grandpa whispered, "Shhhh I wasn't lost... I was just too tired to walk home."