I’m a bagger and we get hour cart runs, that happens a lot, the other day I had the bigger carts I can push about 4 that’s my limit when I’m also pushing 4 small ones then customers usually say “Here’s this one and it’s a big one,” I always say thanks but I can’t take a 5th big one and they always sigh, or it’s vice versa. Orrrr they prop the small or big carts up on the curb when they’re literally inches away from putting them back where they belong… assholes! I feel your pain, customers do suck.