My most reviled character cliche is the "dark, mysterious loner who never talks to anyone". To my mind that's just the role-without-a-role role, and it's L.A.Z.Y.
Go away, mysterious dark boy; peddle your antisocialness elsewhere.
The Dark Loner, ah yes, I know him well. In highschool my group consisted mostly of players from the drama club. While all of them were a bit too dramatic, we had one player that was always the dark loner. So when I started a new campaign and I had everyone meet at a bar it went a little something like this...
Dark Loner, "I sit in the darkest corner"
DM, "the tavern is round and very well lit"
Dark Loner, "then i sit by myself away from everyone esle"
DM, "actually, it's set up like a public house, with lots of large booths where you take a seat wherever you can find it, and tonight it happens to be very busy so there are only middle seats available."
Dark Loner, "then I stand by the bar and order a pint of dwarven spirits"
DM, "the bartender says they are out, so it's either house merlot or a pint of ale"
Dark Loner, "then I get a room and go up there to be alone"
DM, "actually there is one large sleeping room upstairs, the same dimensions as this level, with a bunch of bunks and cots spread around, you just pay for the bed. But the bartender warns against going up there, two drunk halforcs are going at it pretty hard right now..."
I pretty much kept that kind of thing up for the entire session. I would like to tell you that the Dark Loner got the hint, but then a gain I would also like to tell you Lindsay Lohan is a cute, charming young woman, alas, those are but lies.