Walter had been standing in the pharmacy line for twenty minutes.

He was not angry. Not exactly. He had reached the age where a man could be annoyed and entertained at the same time.
The woman in front of him kept checking her coupons. The fellow behind him sighed every thirty seconds like a leaky tire. Walter just leaned on his cane and watched the clerk move from shelf to shelf.
Finally, the clerk waved him forward.
“I am so sorry for the wait,” she said.
Walter looked over his shoulder at the line, then back at her.
“That is all right,” he said. “At my age, I do not buy green bananas anymore either.”
The clerk froze for half a second.
Then the woman with the coupons laughed so hard she dropped one.
The man behind Walter said, “Well, he is not wrong.”
Walter smiled, tapped his cane once, and said, “If you have got a senior discount, I will risk a yellow one.”