Leonard: Hey, Zack. Um, look, I-I know this is gonna be disappointing, but, um, I-I can't do this. No, no, no, no. I-I, I know how. I just can't. (stammers) But, hey, look, i-if you like, I-I know someone who might be interested.
[cut to Sheldon on the phone in Apartment 4B]
Amy: No! Absolutely not!
Sheldon: I'm sorry, my wife says I'm not allowed.