When he reached puberty, Dahmer discovered he was gay; he did not tell his parents. In his early teens, he had a brief relationship with another teenage boy, although they never had intercourse. By his later admission, Dahmer began fantasizing about dominating and controlling a completely submissive male partner. These fantasies gradually became intertwined with dissection. When he was about 16, Dahmer conceived a fantasy of rendering unconscious a particular male jogger he found attractive, and then making sexual use of his body. On one occasion Dahmer concealed himself in bushes with a baseball bat to lay in wait for this man; however, he did not pass by on that particular day. Dahmer later said this was his first attempt to attack someone.