My mother died 10 years ago next month, and my dad was and is, a prick. My mother had severe physical disabilities from a disease 14 years prior, so she depended on the support of my father and myself a lot. Her death was one of those 'it's a blessing', 'no more pain where she is now' type deals. She was the nicest, most compassionate, and caring people I've known. How she ended up with my father is something I'll never know. Hell, I even have the theory that had she not been confined to a wheelchair, she would have left him.
So, after my mother dies, it becomes all about him; how hard it is to be a single parent, how hard it is to manage working life and family life, etc. Don't get me wrong though, I did not envy his position one bit, and he did well to get through it like he did, but he completely neglected me in the process. I was 13 and relatively self-sufficient, but obviously I needed a parent for guidance and support and whatnot.
One day though, I'm telling him about what I've got happening at school that week. A few tests, then I've got a sports game after school, and another one in the weekend. He freaks out when I tell him about the game, complaining that I'm so selfish to have to expect him to take me there. (I should note that I even started riding my bike to school at this point so he could save money on the bus pass he bought for me, so I was hardly selfish) Granted, it was an hour away, but he reacted by telling me the following: "You should count yourself lucky I'm even still here. I don't fucking want to be. If it wasn't for me having to deal with you I probably would have put my rifle in my mouth by now." I didn't really have a comeback for that.
Years later though, he became a worse person. No longer suicidal, though he physically beat me, drove me to self-harm, and years later when I told him about my thoughts of suicide, my self-harm, and my depression and OCD, he effectively said that I was a fucking lost cause and that I should harden the fuck up. I never told him how hypocritical that was for him to say.