On the show, Bentley catches a cold by standing out in the rain for a few minutes. But in reality, colds are caused by viruses, not by the weather. The old belief that you could catch a cold by simply being cold & wet is a myth.
The establishing shot of Bentley's country club, seen in this episode, is also seen in several other episodes when he is playing golf there. In real life, that Is the Wilshire Country Club, located in the Hancock Park district of Los Angeles, about four miles east of Beverly Hills (where Bentley lives).
However, in that establishing shot, only the building on the right (and the golf course in the foreground) is the country club. The taller, French Provincial building in the middle of the shot looks like it's part of the same complex, but it Is actually a condo across the street from the country club (to the east).