Want to know a funny thing about those? They don't crawl up - they have to be swallowed to start the infesting/parasitizing process.
How often are you touching your ass before you eat? Your ass cheeks, hole, and balls are the only things exposed to splashback or anything alive on the seats, unless you are one who personally likes to fondle every part of a toilet seat.
Nothing catchable via bathroom is able to crawl up and infect via the anus/rectum.Now if you have all kinds of sores on your ass I'd recommend not sitting down on a public seat, but frankly at that point I wouldn't recommend sitting on anything bare, period, not even at home. Just because it came from your body doesn't mean it can't cause secondary infections of a different circuit. But again, outside of sores, you aren't going to catch anything that might happen to get to stuck to your skin.
Anything picked up short term is hardly ever going to do something, and then there's this thing called showering and, ahem, washing your ass.
But again, generally, I just can't recommend eating after self-fondling after usage of public restroom. Not without some basic hygienic care.
On this topic, which also ties into the other response:
I used to have this condition, and with it came this ability where my body just never even made it feel necessary to poop in public. I never felt bothered my bowel movement action to actually *need* to go when not at home.
That was, indeed, a magical time. A relatively short-lived spell unfortunately, but I can't deny enjoying it while it lasted.
My body would typically constipate itself while camping to prevent needing to use the bathrooms. But when camping for a week or two, that wasn't happening, it just had to happen.
And then there was Army field training and portajohns, for weeks. That's just how it was.
Now, sometimes it's difficult to convince my body that no I am not droppin a deuce in a client customer's bathroom. Welp, guess we are on occasion.
I've had different constipation issues where now I generally understand it best to just act when nature calls, and to try not to fight it/hold it in for too long.
To also bring it back to
@Ichinisan and
@CZroe -
In life, it's just not worth getting tripped up on the trivialities.
You just *aren't* catching anything from the toilet seat, not via primary means at least. Gross hygiene combined with what might have come from a toilet seat? Sure. But proper hand washing [and the occasional heinie scrub in the shower/bath] will end the threat that came from the toilet seat.
What you really have to worry about in the end are all the handles, locks, etc. All surfaces that one interacts with especially after hand washing - those are the concerns. Everything else is moot if it is before your wash your hands unless, of course, you are touching everything and then eat something that you have to touch -- at which point, that's lost-cause territory.
So yes, it is Apples v. Oranges, but I think you've mixed up which label belongs where. Poop particles can and do travel, and the worst of the infectious agents carried in them are hardy and can live for hours if not days on exterior surfaces. This is why norovirus spreads so rapidly in hospitality environments: it is super hardy, is infectious both well before and well after symptoms, and is generally passed via innocuous surfaces and, a key point here, *not* toilet seats. Warm seat or not, any fresh bugs are just going to land on a part of your body you likely aren't fondling and then immediately eating. People with poor hygiene regimens, mind you, are the source of these frustrations, because they are just walking biohazards transporting hardy infectious agents from hands to oft-touched public surfaces.