Yeah, I rarely, and I mean bordering on the fence between fairly seldom and never, do I cry at fiction. Movies, books, shows, comics, etc I normally keep my cool. In fact, I've only ever gotten misty-eyed at fiction. No actual tears as of yet.
Don't get me wrong, there are moments that I do cry, but then it was always something to do with reality.
So, whenever I find anything that impacts me so much that my eyes start to water, I know that it's good (well, in my opinion. I really couldn't care less about what you guys think. =P)
Most recently this for me was the book A Monster Calls by Patrick Ness. I highly recommend this book to anyone who loves a good story.