Why is someone else's mess (flatulence, boogers, poop, dandruff flakes, etc) so disgusting to us, but not our own?

Yeah, I know the drill. It’s not pleasant, but just different if it’s our own. I wonder that too. I can’t tell you how many times I’ve walked into a gross unflushed public toilet. Yuck. It’s just how our minds and nose work. If it’s our own we kinda expect it.

I’ve always wondered that about farts. It must be the artist in all of us.

My own would bother me just the same, if I had any of that stuff going on.

I’m not all that fond of my own

Well, it would be difficult to function if we were all disgusted by our own bodies. I’m okay being disgusted by everyone else :P

Same with kids, I worship the ground mine walk on but would happily exterminate all other snivelling brats.

And strangely, specific to your own species.
Imagine someone offering you their milk, their eggs, or a roasted leg of their child.

Maybe it’s me, but I don’t have a revulsion to anyone else’s and more than my own. It’s all biological stuff, and if it needs to be cleaned up, you have to do it, no matter whose it is. Shit is shit.

@elbanditoroso I can clean anyones excrement and vomit. The halitosis bothers me a lot, though. Right in my face, I almost flinch away, gag.

Disgust is an evolved psychological system for protecting organisms from infection through disease avoidant behaviour.

You can’t catch your cooties twice. You however can catch a strangers cooties.