Why don't grocery carts ever wobble in the parking lot?

You test four carts in the corral — smooth as butter, gliding like Olympic ice dancers.

Pick one, load up the reusable bags, roll inside.

Punchline

The second you hit produce, it veers hard left, one wheel locked in a spin cycle, and you're parallel-parking a shopping cart past the bananas like it's driver's ed all over again.