Peter Griffin: You know that whole Vietnam thing? Never happened.
Brian Griffin: Oh yeah, but don't mention it around the Veterans Hospital. Those guys are really committed to the lie. (00:14:52)
Peter Griffin: Gays don't vomit. They're a very clean people. And they have been ever since they came to this country from France. (00:18:17)
Brian Griffin: If I remember correctly, this is the Physics department.
Chris Griffin: That explains all the gravity. (00:03:07)





Suggested correction: Quagmire considers the rest of them to be his best friends. He isn't drinking because they can't drink. He is complaining because since his friends can't drink - he won't drink, so he is still pissed.
It's still a plot hole considering Quagmire's age. I think the writers messed up big time.
You make a good point, but it's awkward to be that one person who is drinking while surrounded by people who can't. So, I understand the correction that was submitted above. Because his friends are not drinking, he now feels that he can't.
It's 100% a mistake. Quagmire simply would buy them alcohol the same way Brian did when they realized he could.
ctown28 ★