I don't like playing online, mostly due to my shitty Internet connection, being the only person I know to own GTA IV, and not being good enough to play on public servers (I suck, actually)
I don't play Horror games much, actually I've only played two of 'em: Resident Evil 2 and Left 4 Dead.
Also, the only reason that makes me think L4D is scary is called "Hunter"...