First date. My now wife and I let one rip. She was like "manners" when I let it go. When she let hers go, I said the exact same thing. She responded with "ladies don't fart, we toot". Something she still says to this day. I tell her she farts and can clear a room, she rationalizes "I don't know what your talking about. I had a slightly foul passing of gas", to which I say, "THATS A FART", to which she says "I don't understand your words". That has been going on for the almost 13 years we have been together.
When her kids were in Elementary School, the bad F word wasn't F U * K, it was F A R T.