Snape stood by the elevator, waiting to go home.

Luna approached the elevator, holding a rather large bottle of dandruff shampoo.

"Happy birthday Snapette," Luna said vaguely, "I got you a present."
She held out the shampoo bottle for Snape to take.

"First of all, it's not my birthday," Snape said, "And second of all, if it were my birthday, I would not have accepted that present."
"Why not?" Luna asked, surprised.

"I don't need dandruff shampoo," Snape said.

"Oh Snapette," Luna said, "Don't be silly."
"I'm not being silly, I'm being serious," Snape said.

"That's not a very good impression of Sirius," Luna said.

"No, I'm not impersonating Sirius, I am being serious," Snape said.

"Oh, I understand," Luna said, "You're not impersonating Sirius, you are being Sirius, you actually think you are Sirius Black."
"No!" Snape said, annoyed, "This has nothing to do with Sirius! I am being serious, as in the adjective."
"I didn't know that Sirius became an adjective," Luna said, "Does it mean having a nonchalant look at life and loving to play pranks?"

"Forget it," Snape said.

Thanks to for suggesting Luna and a bottle of shampoo!
So. You know the deal. REVIEW!