[Sir Charles]

No business could possibly operate without assuming that the majority if its customers had a minimum of common sense.

[NativeNewYorker]

No business could possibly operate without assuming that the majority if its customers had a minimum of common sense.

Viacom?

[MineralMan]

"No business could possibly operate without assuming that the majority if its customers had a minimum of common sense."

I assume you're kidding. Many business operate on the assumption that their customers have no sense at all. Used car dealers, most stockbrokers, and every "health food" store, are just examples.