I have a pretty damn good relationship with my dad. My dad has functioned as the greatest source of humor in my childhood, he introduced me to some of my favorite books and he and I share a mutual love of fantasy literature. Almost always, presents between us are fantasy novels we like that we think the other would also like. My dad is pretty much the reason I love puns, he's who I learned all my funny voices from. He's as big a nerd as me, even if it doesn't manifest in the same ways (I love D&D, he's a medievalist, I love video games... he's a medievalist). When I got into drugs, he didn't make a big deal about it, but was constantly concerned that I not be an idiot about it. Now that I don't do drugs anymore I have a completely honest relationship with him, which is a lot healthier for both of us. His recent bouts of cancer have really made me appreciate him as a human, and I can assure you that there are very few people who I have as much respect for as my own father.
My personal manifesto reads as following: "Sometimes my dad is the grey. But sometimes I am also the grey. But you have to try to be the blue and the purple." And even though it's nonsensical and it comes from a babbling rant I went on whilst on a reasonably large amount of acid, it still holds true today.