"Aye, well, don't you two seem to be having a good time." Scotty stalked over and glowered darkly at Chekov and Uhura, who were sitting in a corner table of the mess hall.

The two looked at each other and burst into giggles.

"WHAT'S SO FUNNY NOW?!" the engineer demanded. "Because if you're laughing at the hat my mother knit me, I swear to all that is holy --"

"No, no, ve are not laughing eet your hat!" Chekov quickly reassured him. "Eet is wery nice."

Scotty was almost mollified, until they started giggling again.

"You know, it'd be easier to believe you if you didn't keep doing that," he told them. "Seriously, what's the joke?"

Stifling another giggle, Uhura pointed behind him. "Look at Mr. Spock."

"What about Mr. Spock--"

In the next moment, the entire mess hall turned to watch the chief engineer rolling on the ground, dying of laughter. Everyone, including Mr. Spock, who simply said: "Fascinating."