Do you like watching horror movies? mmm???
Read my take on what horror movies have been to me ...might change your mind!
GORE

The genre 'horror' typically would remind you of all the nauseating, sickening images of spirits inhabiting children's bodies and hijacking their souls and exorcists getting their act together....bah. Seriously, I tried my best to sit through this movie called 'Exorcist' and my best also to get scared. Scared? All I managed to do was turn away my head multiple times with strong censure!
Well I guess it is one kind of horror....one might say.
SPOOKY

Spooky = Psycho.
Now I would think there would be hardly anybody who would not know what the movie Psycho is about and hence hardly anybody would rent the DVD and start watching without knowing anything. That was me. What a movie. Chills you from toe to head.
You know nothing about the movie, there is nothing nauseating you see on the screen ...YET.....
Recommended watching: Rosemary's baby and The Ring

AND THEN SOME...
....and then some movies.........
What do you call them? They are not spooky and do not chill your spine. They don't have ghosts scaring the hell out of you, but they are all about horror. Horror of life. Horror of selfish devils playing with innocent people's lives. You are watching it and cannot digest the gut-wrenching, incredible shock of the story. But it's ultimately something you let the story-teller get away with...for it made you think.

The Deer hunter: Story about youth working in a steel factory. On one day its all about the joy, the merry celebrations of a marriage, the mindless drinking, the being with one another....on the next day they have to be at war.
I've hardly gone though such a shock in any movie. For me, this is one of the most defining moments of Robert De Niro's acting (I think others will be Taxi driver and Analyse series) Christopher Walken does an unforgettable job too.
Quote:
I don’t even like holding them. Whenever I hold a gun, I want to get it out of my hand as quick as possible.
—Christopher Walken, Entertainment Weekly, 03-17-2001

The other scene similarly that comes to my mind is the accident scene in 'Accident'. Brutal in detail, the scene with Nagabharana begging for mercy on the out-of-control car and finally getting thrown off haunts you for ever.
Accident itself is my favourite among Shankar Nag's films. I get angry when its slotted as an 'Art movie'. I wish we did not have this 'farce' going on when it comes to Indian movies. By the way watch the movie (if you have not already) and observe how it's contemporary even today, after 21 years of release. Awesome movie making!
ps: Came back and added two more movies I remembered - which were horrifying just by the shocking incidents shown so realistically - a) Hotel Rwanda b) American History X. Both about racism, incidentally. Especially the scene in the latter where Edward Norton is inflicting violence on the people trying to rob his car.