OMG, I got scared when the chandelier fell on Laura. Talk about unexpected, and talk about a loud CRASH! (I had my sound card connected to the home stereo system)
I don't remember Dagger of AmonRa scaring me too much. Then again, I never finished that game. It seemed much "slower" than CB, and there were less places to find bodies. You could almost figure out the number of people divided by the number of locations...
But the game that scared me most was GK1... I guess supernatural horror scares me more. The unexplained can happen to anyone, whereas Laura wasn't inheriting any of the money so why would the killer go after her? Although, when I found Lillian dead, that's when I started to worry.