Red

I was explaining the color red to a blind man when the hot ham sandwiches arrived.
The blind man laughed. “You have no idea what red is,” he said.
“I know what red is,” I said. “You’re the one who has no idea what red is. You’re blind.”
“But I know what red is.”
Then he began an hour-long, amazingly poetic, utterly riveting explanation of what red was.
When he was finished, he took a bite of his sandwich.
“It’s cold! Waitress!”
I may not know what red is, but I know when to eat my hot ham sandwich hot.