S5E18: Meet the Quagmires
What do you mean, "plans"?
I'm going to the Country Club Dance with Glenn.
I wanted to surprise you with the invitation last night,
but you never showed up.
Now, if you'll excuse me, I have to get ready.
Peter, the Country Club Dance is where Lois said she fell in love with Quagmire.
If they kiss at that dance, you're finished.