Old Man： I will give each of you 10，000 RMB if you move apartments today！

Old Man： This is great， thank you. Where are you moving to？

Neighbors： Oh， we just swapped.

This joke is adapted from Xiaolin Guangji （《笑林廣记》， Extensive Gleaning from the Forests of Laughter ）， a joke book published in 1781 that epitomized Chinese humor.