So, what is a shopping cart that is not meant to carry an item?
Philosophically speaking, are the objects we are (supposedly) returning to the corrals even shopping carts in that moment? Shopping carts are designed to carry items for us, items that we do not wish to or cannot carry our selves. But after that function is served, and before another takes them, they do not serve that purpose anymore. So maybe one problem is that we cannot put a shopping cart back in the corral if it is no longer, functionally, a shopping cart?
So this is mostly a philosophical problem, not one of laziness.
However.....after its use, a shopping cart, much like what we initially put in them, becomes an object we cannot or choose not to carry with us.
So I think the obvious solution is a much LARGER shopping cart to put our shopping carts in. They, then, become functional shopping carts and we can justly put them back in the coral.
You all in?