One time I had a friend with an old VHS tape that he wanted converted to DVD. I offered to do it, but the equipment I use requires a 1:1 recording speed which means the movie has to play out as it transfers over. That's nice if you want to watch the movie, but I was nervous that I might see something I didn't want to see. Luckily for me, I've never ran into that or anything like your situation.
Not sure what I would do in your situation, other than wash my eyes out with bleach.

Either that or just calculate the amount of alcohol needed to forget that moment.