I've had a life so far, that has exposed me to all sorts of really gross stuff - partially because such things interest me, and partially because it's been part of some jobs I've held - dealing with everything that comes out of all kinds of animals ! I generally have a very strong tolerance for things that other people may not be able to handle.
So I amuse myself when I find I'm grossed out by odd and unexpected things, such as :
Touching mixed organic greens that have badly wilted and now are somewhat slimy ... ick !
Preparing pet food, and getting the juices on my hands - yuk !
(maybe because I haven't eaten creatures in many years ...)
Seeing anyone spit on the sidewalk - nasty !
Watching some people eat ... barf !
What sorts of things get to you ? Rational, or not ?
Spitting is a biggie for me especially if it tobacco and really especially (I'm being sexist here) if it's a woman.
Not just eating but eating with one's mouth wide open.