Tribble with a Quibble
Well... the Star Trek/Shakespeare thing didn't quite work out, so here's this instead.
Bones: The grain was poisoned. It's been impregnated with a virus.
Kirk: Who put the poison in the pellets?
Spock: Perhaps there is a Klingon spy.
Kirk: Poison in the pellets by an alien...?
Bones (holding a tricorder to Darvin): who is altered. This man's a Klingon.
Kirk (shoves a squawking tribble at Darvin): The tribble has a quibble with the alien who is altered?
Spock: Tribbles are very perceptive creatures.
Kirk: The poison in the pellets killed the tribble with the quibble.