He saw a lady in her late fifties standing at the fruits and vegetables section taking pieces and pieces of plastic bags.
She puts all the items in her basket into the plastic bags individually.
This packet of instant noodle into one plastic bag. Another packet of instant noodle into another. A box of English tea into another. Another box of tea again into another.
As she walked away, her hands were holding a bunch of plastic bags.
If she wanted to take the plastic bags, she could have just took them. Nobody is going to stop her from doing that. Why was she putting all her items into individual plastic bag? To make it looked like she didn't take a lot? To make herself feels better?
He wondered how the cashier will react when he or she needs to remove the plastic bags to scan the bar code of the items.