I’ve never understood the whole “If you have to shit” thing. I’ve heard that most of my life from various people.
If I had to shit, I’d go shit. I have to pass gas - they are mutually exclusive.
That said, what does the OP think the woman should have done? Prostrated herself and begged forgiveness? Sometimes it just sneaks up on ya.
What I find funniest isn’t the fart, its the fact that grown ass people get disgusted by it, as though it is a wholly unnatural act.