I was thinking about Dungeons and Dragons today, and it turned my mind to the old D&D cartoon from the early 80's. At first, on thinking about it, I decided that the writers knew almost nothing about the game. A few generic fantasy monsters, a few terms from the DMG, and hey presto, it's licenced goodness! But then I started giving it more serious thought...
...and I realized, the D&D cartoon is an almost perfect simulation of the game. Think about it--every gamer has joined a group like this. The DM is a weird, ugly little guy with no social skills; when you show up, he won't let you make your own characters and instead "assigns" them to you to make a more "balanced party". There are a bunch of homebrew classes he made up himself that are either rip-offs of existing classes, but without any of the balances ("You're not a Paladin--you're a Cavalier. It's like a Paladin, but you don't have any alignment restrictions so you can be a whiny little bitch.")...or are absolutely useless. ("You're an Acrobat. It, um...gives you bonuses to Tumbling.")
Then he starts handing out the magic items. Some people get awesome ones ("it's a bow that shoots lightning arrows!"), others get...well, it's a stick. And it gets longer. Yeah, sure, it's a total coincidence he gave that to a female character. And then, of course, the guy who he decided to take an instant, inexplicable dislike to gets the cursed magical item. (Try to tell me with a straight face that wizard's hat isn't cursed. Just try it.)
And then, you start playing. And you've got an objective, like "Let's try to get home," but it becomes really blatantly obvious early on that the adventure is running on rails, to the point that the DM writes himself in as a character to steer you along. You realize you're never going to get anywhere with the story arc, and after a while, you just lose interest.
...and yet, you still have fond memories of it years later. Yep, sounds like a D&D campaign to me.