It's called "upselling". A person brings in their dog for a dog wash on sale for $9.99 and leave with a headstone, doggie coffin, burial plot, and new dog for $2,000.00.
I heard the manager got a bonus.
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--Some of us look for The Way in opium and some in God, some of us in whiskey and some in love. It is all the same Way and it leads nowhither.