Husband: I dont know why, but I always sneeze a lot at the office.
Wife: You sneeze when Im thinking about you. Have a nice day, sweetie.
Husband: Hey, neighbor!
Neighbor: Good morning! Achoo!
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.