“So that’s what you were doing, wasn’t it?”
“Makin’ fun of him?”
“No,” said Atticus, “Putting his life’s history on display for the edification of the neighborhood.”
Jem seemed to swell a little. “I didn’t say we were doin’ that, I didn’t say it!”
Atticus grinned dryly. “You just told me,” he said. “You stop this nonsense right now, every one of you.”

– Harper Lee

To Kill a Mockingbird, Chapter 5. Atticus, who is not often severe with his childen, has strong words when he catches them and Dill playing a game called “Boo Radley.” He makes clear that the Radleys are people and are not to be made fun of.