"you don't know where that's been"

In the supermarket the other day, a mom scolded her baby, who was sitting in the little seat at the front of the shopping cart, when the baby leaned down and started chewing on the cart handle. "Don't do that! You don't know where that's been!" the mom exclaimed.

AND HOW RIGHT SHE IS! Just **think** of the adventures shopping carts get up to!

The cart you are sitting in right now, baby, may recently have been sunning itself on the beach...


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Or it may have been tangling with rival gangs in...