While playing a male character I have found it extremely frustrating that I am unable to mock the enemies that I just killed.
As a female however, I can shout "Pay attention!" while morbidly mutilating the corpse of the recently murdered and cut up enemy.
I know it's probably not possible to add a sound for the male version of this voice command (however using the female one would be pretty funny), but I hoped it was possible to add this command to the global voice commands (like 'hello', 'silence', 'thank you', 'yes' and 'no'). I think the '[W]atch your aim' command is important enough to put in global!