Tom and Kitty Katz lived in a large home in an upscale suburb with a large pool and tennis courts. Their neighbors were a Chinese family named Mao who also had a fine home but with only a small pool and no tennis courts.

When the Katz’ went on vacation they left a house key with the Maos who would keep an eye on things. The Katz’ returned a few days early and found the Maos and a lot of their extended family having a pool and tennis party.

Kitty turned to Tom and said, “I guess the old saying is true. . . . When the Katz’ away the Maos will play.”