“You know holly is poisonous, right?” asked Sherlock.
John sighed. “Not very.”
“In the right amount…”
“You already ruined nutmeg this holiday. Can you leave the holly alone?”
“And the ivy.”
“What about the ivy?”
“Also poisonous. In the right amount.”
“Is there any holiday decoration you haven’t considered as a murder weapon?”
“No.”
“You must have been a joy at Christmas as a boy,” muttered John.
“I’m always a joy,” said Sherlock, offended. “Mistletoe, now there’s a plant with some colorful history…”
“Shut up,” said John, kissing him, “and prove to me what a joy you are.”
Sherlock complied.