When I was fifteen and pimply I sat in a classroom and told people I had a daughter, and that my childhood sweetheart had died of a brain aneurism. One girl cried before I finally fessed up. Another girl became my girlfriend.
It was around that same time that I convinced one younger brother that everyone in the family was a space alien except for him and I frightened one baby brother by staring him down.
I believe these events mark the point in my life when I realized that making shit up and fucking with others for self amusement is useless human behavior.