Knock, knock!!

Why now...? Kakashi thought. Today was his day off, and all he really wanted to do was catch up on his Icha-Icha books...

Knock, KNOCK.

He rose from his seat on the couch... opened the door... not Guy...

"Good morning, Kakashi, my eternal rival for life!" Guy shouted, "I have come this morning to propose a bet that I bet you cannot take!!"

Aw, come on, this is stupid... like his smile. "So... you're betting that I can't take a bet?" Kakashi asked.

"No, I bet that you can't take the next bet that I'm about to offer."

"Ok. I'll take it then--"

"BUT-- I also shall add to it that you can't win that next bet even you won the first!"

"Then I'll take both of 'em. Besides, that's a loss for you, isn't it?"

Guy's grin faltered. "I do suppose it is... BUT-- Since you shall take my next bet, I bet that you can't tell me why you wear a mask!!"

...The Copy-Ninja, for once, was dumbstruck.

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Iruka sat lonely in the half-empty bar, minding his own business... lunchtime already, huh? Yeah... then he heard a commotion outside, and so, like any other person, looked out the window--

And he saw Guy running down the street, giggling madly, holding a set of-- dentures...?

And behind him ran Kakashi, with his mask-- OFF!?

"COME BACK HEE' WID MA BENPURS, GUY!!"