literally

Dh asked Lastborn to go into the kitchen, in the cabinet under the sink, and get a single white plastic bag from the box he would find there.

First, Lastborn went into the kitchen and grabbed a plastic shopping bag from the table where the remains of the last shopping trip still sat. Why go through the effort of looking under the sink when there were bags on the table? We use these bags to line our trash cans, so it made sense.

"No," DH said, "from the box under the sink. Go back and try again."

Lastborn returned to the kitchen and got a white plastic bag from under the sink. This one had stuff in it.

DH scratched his head and carried it back into the kitchen to see where Lastborn had gotten this bag. DH was expecting a folded up plastic bag from the box of new plastic trash bags under the sink. He didn't think that the garbage can stored under the sink is also a box and it also contained a single, white plastic bag. Literally