I participated in a Half-Life related forum and we had Half-dude grace us with his presence for a while. Details are hazy, but at first he was just an inconspicuous poster (half-life, half-dude, haha funny name and all that). He posted some tame deviantArt drawings of an anthropomorphic GLaDOS from Portal and I really don't know, it might've been somebody looking at his other pictures on dA or a different incident, but inevitably car-fuckin' became the topic of conversation. Following people (expectedly) laughing him off, he revved up his fetishism and started tantruming for, like, a week.
Half-dude kept spite-posting his hot car drawings, trying to shock us with descriptions of how perverted he actually was (!), going "yeah, well I have two Audis and I actually fuck 'em in real life too, what do you have to say about that?" and generally kept upping the ante with a smug sense of superiority and contempt for anyone who dared consider him weird. I did not pay attention to the entirety of his meltdown, but his ban was well-deserved and he is still fondly remembered.
When I heard the car fucking episode for the first time and it came to the point where Lemon uttered the name "Half-dude" I froze as the memories of his slutty cars with bedroom eyes all came rushing back. It was the biggest "What? Noo! I know what follows next!" moment I've had while listening to the F+ and it was the most unexpected subject as well.