Just that. (Lighthearted btw) I get that it's not always possible to hold it or realistically practical to fart only when there's gonna be time for it to disperse without causing your paying customer to feel repulsed & bokey. If that were me I'd have been mortified. Now, I'm not prudish about farting -
better out than in - & my kids think that farting in the bath is the funniest thing but trapped in a taxi? 