McCoy (off screen): "Dammit Jim, I told you that he was a green-blooded alien!"
Spock wondered how long it would take McCoy to notice the slow acting poison that Spock had been introducing into his food for weeks.
McCoy wondered how long it would take Spock to notice his April Fool's prank.
ELEEN: Her wig, indeed! Hers is not two-tone!
MCCOY: Sorry, but Janice really wants her wig back.