I've name-changed for this.
Long story short, I have a male relative, in his 70s, who bought a computer a couple of years ago for emailing and listening to music and whatever. He is always running into problems with it and recently brought it to me to 'fix'.
So I took it home, opened it up and saw it. Not just search history but endless OPEN tabs, bookmarks, videos all over the desktop of the most horrible sexual stuff I have ever encountered. Stuff that I suspect might be illegal but I don't know for sure because there's no way I'm putting those god-awful search terms in my history.
I tried to mention this discreetly to a friend, omitting details, and I got the usual "leave him alone", "everyone has needs", "porn is normal" blah blah blah and to just let it go. But I can't because this man is a god damn deviant and I will never look at him in the same way again. I never want to be in the same space. I don't know how in the hell he could hand over a laptop with that EVERYWHERE ON IT and not even care?
I don't event want to describe this but basically, what I saw - it wasn't children. But as far as I'm concerned, it was just as bad. It was the same level of severity in my eyes.