Banana
"Stop it."
Sherlock looks up. "What?"
"Stop that."
Greg briefly glances up at both of them then thinks twice and looks back at his paperwork.
"Stop eating it like that!"
Sherlock stares at John. "You know I haven't eaten in four days. You're the one who insisted I eat."
John flares his nostrils, looks at Greg. "You don't need me do you?"
Greg shakes his head.
John nods, stands, leaves the room.
Sherlock watches him leave.
"What's his problem?" Sherlock demands.
"Have you ever reeeeally looked at a banana?"
Sherlock looks at his banana. Long, slightly curved, generally quite thick-
Sherlock blinks at his banana then turns red.
Greg chuckles.