What are some of the best examples of this genre? Ideally real reactions, not acted.

I've done a few slime shoots where the buckets were left out in the sun for weeks that might be up your ally its pretty much impossible to hide the visceral disgust of being covered in rotten fish and stuff

And because of you, your HOA is voting on a proposed amendment to their bylaws that would include a prohibition on leaving buckets of rotten fish out in the sun for more than one week (7 days).

I am game for much. But I have my lines. Rotten fish is one not crossed over

About twenty years ago I was involved in a Male and two females messy video, after a few rounds of pies and humiliation I was tied to a chair that was inside a 4ft deep dunk tank ( the type that comes with a dunking stool ) I then had several drums of thick goo and sludge poured over me that stank! totally awful.

To finish it off I had seven buckets of thick black treacle poured over me, I was left there for around 10 minutes in what felt like stagnant sludge -