Continuity mistake: When Mr. Washee Washee walks into the bedroom while pointing a gun at Peter, the buttons on Mr. Washee Washee's shirt keep switching to the opposite side in following shots. (00:05:15)
Continuity mistake: When Peter walks into the dry cleaners the door sensors go off, and as Peter leans down to wave his hand in front of a sensor, all the buttons on his shirt switch to the opposite side, then revert back. (00:02:15)
Continuity mistake: When Mr Washee Washee discovers Peter in his bedroom, Peter's glasses are missing when he says the line, "it seems we're at an impasse", but instantly reappear at the start of the next line, "how do you propose we settle this?"
Continuity mistake: As Peter pulls up outside the laundrette, there are parked cars visible on the other side of the road. In the next shot, as Peter is exiting his car, the cars have disappeared.





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 ★