So I'll just get straight to the point.
There should be an @social called "scream" or "shriek". Characters would be able to hear it from nearby rooms. Sort of like the "shout" command. Let me give you an example:
From somewhere nearby you hear a shriek.
From the north you hear a scream.
This way, players can use it quickly when their characters are in trouble...I mean let's think about it. Somebody shoots you and the first thing you would do is scream, not "HELP!" or "NOOOO!". Okay...So maybe you would cry for help, but, shush.
It's faster to type anyways (in case of emergencies).
The wild dog pounces on you, sinking its teeth in your calf.
You open your mouth and let out a ear piercing scream.