I always return things I use to there proper place. And, if there are carts that lazy, unethical people leave loose in the parking lot, I generally gather those so they are not a hazard or impede others parking. It disgusts me that so many people are so lazy they can’t return the cart they borrowed to its corral, which is usual a very short distance away.
That’s a concept or chapter in All I Really Need to Know I Learned in Kindergarten: Uncommon Thoughts on Common Things.
Put things back where you found them.
Same here. The non-returners are one click above litterbugs on my scale.