Dead is a very useful skill. It allows a monk to act dead.
A sucessful irritated victim will then stop the fight.
After all if the victim stops the attack depends on your
and the victims intelligence.
Dead is only useful when it's practiced on a very high level.
This skill is 'very hard' to advance by training without master.
PS:
The victim will learn from your acting dead, depending on her int.
So any try will lower the change of success.