Getting burned by people you help isn't limited to porn, as you no doubt are aware.
Since I was a teen I have had
Pudd'nhead Wilson's view of people, but I actually help more people than most. And yet, it STILL surprises me what even good people can do.
Before I got ill I had an employee who always had money issues in regard to his support of his daughter and lent him money many time [always with the knowledge that I likely would not get fully repaid]. When I saw him years later, I decided to tease him about the $250 or so he owed and much to my surprise he said that he never borrowed any money.
To Mark Twain:
If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.
--Pudd`nhead Wilson`s Calendar