The doctor entered into sickbay and just could not help himself. But of course, being the doctor he was, put up his most professional face on.

It was useless.

"So Spock, what seems to be the problem?" said McCoy, laughter finally escaping him.

"If it's not obvious to you doctor, then perhaps you chose the wrong profession," replied the Vulcan.

"Aw. Come on Spock. You got to admit this is pretty silly."

"Vulcans do not believe in si-"

"Silliness. I've heard it all before. Vulcans don't this. Vulcans don't that," said McCoy rather dryly. "Vulcan also don't believe in chickenpox vaccinations... Hey, no scratching."

"Yes, doctor..."