Repeat

"Why are you doing that?"
"Why are you doing that?"
The second boy's tone was mocking, as befitted this kind of childish game.
"Stop it."
"Stop it."
The first boy was becoming angry. He sighed.
The second boy sighed.
The first boy punched the second boy right on the end of his nose. The second boy collapsed, groaning. "Why?" he pleaded.
"I didn't say that!" raged the first boy and walked away.