Most creepiest moment that ever happened?

I don't really play any horror games but the Tower of Latria level in Demon's Souls had a fairly creepy vibe to it.

Surprised no one mentioned the bathroom stall part in SH2 (Alternate world). Knocked on the stall door just joking around and got a knock back (Me: WTF). I turn to leave the bathroom and hear the stall door open then someone runs out screaming. Scared the hell out of me you know.

"Cry of Fear" everytime something shows up on the screen for half a second and runs away.

I +rep you!

Playing LSD on PS1.