A webcomic by Erik Schoenek. Started in 2001, went on infinite hiatus in 2007. You find the archive of strips up to 2004 here while the latest archive can be found here.A sequel comic called Quarter-Life Crisis (set nine years later) has started and has a new website hereThe protagonists are three high school kids on a school in Michigan:
Ben Winchester, a somewhat weird, but generally nice guy.
Disappeared Dad: Jodie's, though it's something of a subversion - Jodie's mother became pregnant from a one-night stand in Vegas where she was so drunk that she didn't even remember the guy's name. She never saw him after, and it was two weeks later at home that she discovered she was pregnant, much too late to even attempt to locate him, so he didn't disappear - he was never even there to begin with at all. It's here.
Though to be fair, it's never actually referred to as Tourettes Syndrome. He's just so socially awkward that he spits out the first thing on his mind when he meets a girl. Considering that he's an average 15-16 year old male, simmering in a massive cocktail of hormones, the first thing on his mind tends to be sex.
Wouldn't Hit a Girl: Played with. When a guilt-ridden (for having sex with Jess) Jodie demands that Ben punch her, he eventually hits her with a light tap, saying that's how little he's angry with her. Subverted afterward when she confesses to kissing her and Ben lunges at her in fury. Before that, he plays up the Double Standard for all it's worth. Jodie asks him "What would you do if it was Eric who slept with her?". Ben immediately goes into a trance-like state and launches Eric across the room with one punch without turning around or even looking at him.