I have had the clerks at costco grab my cart not me. And pull me back into the store to check my items. I take issue with that as that can be considered battery.
Who's cart?
How much did you pay for your cart?
Isn't it a hassle to take your own cart into the store every time? I usually just use one of the carts that the store was kind enough to loan to me. Of course, since I don't own that cart, and the store does, I take care not to damage or destroy somebody else's property.