I went on a blind date in high school as a favor to a friend of mine. Figured it couldn't be that bad, as it was a double date and the guy was a cousin of the guy my friend was dating, who seemed nice enough. Went out for pizza and came back to her parents beach house to watch movies. Everything was going well and he was a nice looking guy. He asked me to go for a walk down the beach with him so we could talk and get to know each other. So I went and he began talking about his family and his mental illness. Come to find out, he had just come out of a mental institution, which did not bother me at first. Then he told me the reason he was in the hospital was for having homicidal thoughts, he had thoughts of killing his parents. That was enough for me and the date quickly ended. I have never been on another blind date since then and never will again, not even if it was my parents that set me up.