OK, hands up. I don't look behind me at all really in public, and don't really fart when I'm out.
BUT. I have (a few times) needed a massive fart whilst on the driveway at home, and I do look left and right of the car, to see no-one is on the public footpath, or in next door's garden, before ripping one off! 😆
I remember once saying 'oh shitting hell!' when I dropped my phone in the mud on the driveway when getting some bottles of water out of the garage, and the postman said 'oooh everything OK, Mrs Zov?' and he laughed. He was some 10 feet away from me, on his way up the driveway.
Imagine if I had cracked off a huge fart? WAAAAAY more embarrassing than him hearing me say 'shitting hell!' 😆