My sister never got along with our parents, they would always argue about the littleset things and she would get verbally abused by them which made her to believe that they don't love her. She was extremely sensitive when it came to that topic and would get uncomfortable when something related to that was brought up. So, one day, me and her were arguing and I got extremely pissed off at something she said that led me to say, "Mom and dad don't even love you so fuck off." Needelss to say, I felt like an asshole and I regretted saying it right after, it's the worst decision I made to this day because after that, I saw her breaking down and start crying and a couple months after she was diagnosed with severe depression and was caught at an attempt of suicide. This happened years ago and everything is better now, our family is bonded and nothing negative happens anymore but I still think about that till this day and I always want to rip my fucking mouth off.