My best thriller/horror movie stereotypes and clichés

As we have been studying thriller/horror movies during media, I decided it would be a great idea to start watching various movies of the same genre. After studying the movies I have watched I wrote down a list of stereotypes and clichés that come up, in which I have found:

1. The killer is always killed by the hero- but sometimes the hero never checks to see if the killer is really dead bringing them back to life!

2. Despite all the evidence characters provide of a serial killer, the police will never believe you!

3. You should never turn your back, because the killer could always be right behind you!

4. The car will never work or may take along time to work if you want to escape

5. While running away from the killer someone will always fall down

6. Dark and rainy sceneries are never good, providing a eerie atmosphere for the killer to kill you

7. Dangerous weapons are always being left around

8. The mean slutty girl is usually killed first and in the worst way possible

9. Cats tend to regularly jump out and startle people

10. Characters will always walk bravely into basements or lofts but then act surprised when they are attacked