Wolfsbane

They were sitting on his desk when he arrived at work. Blue-purple and innocent-looking, plunked into his empty coffee cup like a makeshift vase.

Daniel sighed and shook his head, moving them aside to continue his work.

Sam stopped by an hour later, and spotted the flowers almost immediately. "Monkshood?" she asked, suppressing a laugh.

"Hey, don't look at me," Daniel replied, raising an eyebrow. "My guess is another rookie Marine with a sense of humor."

"Don't worry, I'm sure the novelty will wear off soon," she assured him. "If it doesn't, you could bench-press a Jeep for them again."