Disclaimer: Naruto is not mine.
Sasuke was a cold bastard. Or at least that's how he liked to be perceived.
Unfortunately for Sasuke, Maito Gai refused to believe it. He just couldn't accept that anyone--even someone of the urbane Uchiha persuasion--could resist Konoha's sprouting leaf of acceptance. That was why he challenged Sasuke to a game of ping pong.
"If I lose, I shall walk five hundred laps around Konoha on my hands!"
Sasuke stared at Gai.
"I forfeit," he said coolly, before walking away.
Not even Sasuke's rejection could interfere with Gai's burning determination.
"If I lose, I shall wear a tutu!"
Sasuke stopped dead in his tracks.
"I'll accept the challenge," he said slowly. "On the condition you never wear a tutu. Ever."
"I am a man of my word," promised Gai.
Sasuke never told anyone about the deal he had struck with Gai, but years later, after Naruto had become Hokage, he thought about it occasionally. Mostly he was satisfied with having saved the entire village from such a horrendous display from a grown man, but he was not without a tinge of regret for having made Gai burn the tutu; he might not have minded a private demonstration.
With a sigh, Sasuke realized that maybe he really wasn't such a cold bastard, after all.