As a team, Caroline and Emma create far greater havoc than the sum of the parts. They're usually pretty cool for the first 10 or 15 minutes of shopping, and then realize that with just a bit of whining, they'll be able to get out of their seat in the cart and run around. Then the real test of boundaries begins, and nothing is safe. Here, with the promise of some sweet Costco berry smoothie, they take a break and plot their next move.