SCREAM - codes and conventions

Scream

You may not survive the movie if you have sex. 
You may not survive the movie if you drink or do drugs. 
You may not survive the movie if you say "I'll be right back." 
Additional rules (according to the killer):

You may not survive the movie if you ask "Who's there?" 
You may not survive the movie if you go out to investigate a strange noise

Scream 2

The body count is always bigger. 
The death scenes are always much more elaborate, with more blood and gore. 

Scream 3

"You've got a killer who’s gonna be super human. Stabbing him won’t work, shooting him won’t work, basically in the third one, you gotta cryogenically freeze his head, decapitate him, or blow him up." 
"Anyone, including the main character, can die. This means you Sid." 
"The past will come back to bite you in the ass. Whatever you think you know about the past, forget it. The past is not at rest, any sins you think were committed in the past are about to break out and destroy you." 
Basically in the third movie, all bets are off.