Red Dwarf Slash

I submitted a comment anonymously as I didn't have an account at the time, but it hasn't been posted, so I'll try to remember as best I can what I put. Basically, in one of the books (spoilers:) we find out why our Lister and psycho Lister are so different, and it's because of the adoptive parents he chose. Our Lister chose kind people; psycho Lister chose rich people and that adoptive mom was a bit... unbalanced. I don't remember the entire bit, but it might help someone know where to look to see if there's a bit more info on our Lister's mom there. And, of course, that depends on whether or not you want to pull book-verse info into your story or not. Good luck!