A hitchhiker is taken by an elderly couple in an RV.
During the trip, the husband, driving the vehicle, says “152”, and the couple laughs.
Then the wife says “365” and they also laugh.
The hitchhiker then asks “What’s the deal with these numbers?”
The old man replies:
“We’ve been telling each other jokes for such a long time that we memorized and numbered them all, and now only refer to them by numbers.”
A few minutes after hearing that, the hitchhiker says “984”, and the couple heartily laughs for quite some time.
The hitchhiker asks “Is it that funny?”
The old man replies
“No, but it’s the first time we’ve heard this one!”