The man with the grocery bag

Yesterday I saw a man carrying a HUGE shopping bag. I really mean HUGE. It would probably accommodate 3 weeks of my groceries that’s how HUGE it was. I guess it was a little tricky for him to manage carrying – so he opted to tie it to his belt. I have no idea how he managed to keep his shorts up with that tied to his waist. He had to tie it to his belt because he purchased one of those portable shopping carts so he had to carry that with his hands. What I didn’t understand is why didn’t he just open up the shopping cart and put his big bag in there? I guess that would just be too easy.