Well, I take pride in owning up to most everything I do when it is wrong. I have no problem with it because it's what being a responsible person is. These people never have owned up to anything and are unable to empathize.

For example:

My ex-roommate was one of my best friends. He would spend all of his time smoking weed and eating my food (I make $750 a month and rent+bills+gas= $550/month so I have a strict budget). Besides all the stereotypically shitty roommate things, this guy would manipulate me into a lot of things. We were $450 behind our electric bill that was his responsibility, he said "of course man, I got it (like he did every time)" and he went to go cash his paycheck. Within thirty minutes, he used every dime of that money for weed when he called his drug dealer over. He didn't buy food, he ate mine. He lived with us for eight months, I covered for him every month for bills, not a single time did he pay on time. So, I covered for him as much as I could because I didn't want to not have electricity. Over the span of the summer, he got my power shut off twice, the water and internet once and all were his responsibilities. Whenever I called him out, he tried to butter me up, say anything that would make me feel bad for him and I mean anything. All were lies I later found out. He would leave for weeks and not pay rent, so I had to or else I would get evicted (we were on a single lease). Most of this happened when I was taking 15 hours and worrying about tests. I also have a dog that I exercise everyday and have to be responsible for. Speaking of that, he brought home a diseases dog because he thought it looked cute. Instead of spending the $150 for vaccination and deworming he spent it all on weed and fun. He took my dogs food, took my pots and pans to feed/water, never bought a leash or collar. The dog was getting in worse condition. Instead of taking care of it and neglecting it, he took it to a kill shelter and it didn't phase him. I ate around 600 calories a day because of all the money I had to spend. I lost 15 lbs within a month and I'm already skinny. This is only a tiny fraction of what he'd do. He only lived for himself and I felt so ashamed of myself that I kept trusting him because he'd been like a brother to me for many years. He saw that, and he knew that I would help him no matter what. I was desperate, I rarely cry more than once in a year, but I was crying when I would talk to him about how his irresponsibilities affected me and it didn't phase him. I'm older now, and I know how to not let people take advantage of me. But, I don't even know how to describe it, I felt violated.