The Secret to a Long Life
Grandpa was celebrating his 100th birthday. Everyone complimented him on how healthy, athletic, and well-preserved he appeared.
“What’s your secret?” one guest asked.
Grandpa smiled and said:
“Well, my wife and I got married 75 years ago. On our wedding day, we made a solemn promise: whenever we had an argument, the one who was wrong had to go outside and walk 5 kilometers.”
He paused proudly and added:
“So I’ve been enjoying fresh air and daily exercise for the last 75 years!”
The Joke Explained
The humor comes from the hidden meaning: Grandpa is basically admitting that during almost every argument, he was the one proven wrong — so he ended up doing all the walking for 75 years!
