a scenario I think about a LOT. like a lot a lot. is a world where people can relieve themselves wherever and whenever without being frowned upon.
it's a pretty common occurrence to see someone raising a leg and letting out a deep, rumbling fart from their plush buttocks. it stinks the air around them but they don't seem to care. sometimes, they aim it at you for a laugh.
but oh, it doesn't stop there. on their way to their office, your boss - in a beautifully formal black suit and tie, smelling of only the finest (but not too intense) cologne - unzips their pants and lets out a thick, steaming stream of piss into the corner of the room. when they're done, they zip up and go to their desk as usual without a word, not caring if anyone's watching, not embarrassed in the slightest.
that, or someone pulling their pants down, doing a squat, and shitting out a pungent, fat log of shit on the pavement. eh, who'll care? everyone does this kinda thing around here.
you're kind of, well, the only one "bothered" by it in a sense. I say in a sense because, don't deny it, it's a major turn on for you. and it's as if no one notices this when they do it, it's so natural to them that any kind of sexual arousal one could feel sounds impossible, you know? it'd be as incomprehensible as having a heartbeat kink. it's never viewed as an inherently sexual or inappropriate thing at all.
oh, there is one thing I forgot to mention about this though.
whilst farting, pissing, taking a shit when one needs to is normalized everywhere (or almost everywhere) here, there are some. hm. limits, I suppose. well, not really, but you'll see what I mean.
relieving yourself on someone, or in someone's direction intentionally, is seen as a major sign of disrespect for the same reasons as it is in the normal world.
it works almost like a scale. holding your breath and pushing out the most wet sounding, pungent plume of foul gas from your rear is surprisingly the lowest. doesn't leave a stain, since at the end it's only bad air. reacting to someone doing this to you is often seen as pointless, irrational, or an exaggeration.
second place - more severe than a simple fart, but not as bad as the last one - is of course piss. you're sat down, and in your peripheral you see an acquaintance you got into a petty fight with earlier. you assumed they were over it, so you go back to what you're doing. as you're not looking, you hear their steps coming closer (again assuming they're walking past you to do something else). they stop. their pant fly unzips, and you can hear it.
faster than you can react or say anything, a hot, loud stream of piss hits your side. your face scrunches up in disgust- what the fuck?? this is insane. this can't be happening, but nobody turns their heads, scolds them, or does anything at all. even their own face is straight (though steadily increasing in relief). when they're done, they zip up again and turn around.
"until next time." they say mockingly, and walk off without another word.
oh, right. the third thing. and that is, obviously, taking a shit.
not in someone's mouth (or maybe yes, if the idea turns you on more) directly, or rather rarely. it's more commonly not that.. "extreme."
pulling down their pants and letting out a sloppy shit into your chair. wiping their ass with your pillow, leaving streaks of shit on it. sometimes, if they can get away with it, sitting on your lap and letting go right there with a sigh of relief as you smell a foul, almost gag inducing odor from their behind and a gross, sloppy, hot sludge on your pants where they're sitting.
.. nobody knows you jack off furiously to this when it's over and you're alone. at least you think they don't ;)
[PS: nobody gets sick or ill in any manner from this, including you. yes, the smell can be quite.. intense, when it's fresh from the source. but it goes away after a while or someone ends up cleaning it.]