Feigning Death
Preparation:
Don't bring cash or valuables with you because your training colleagues will almost certainly loot your belongings afterwards, regardless of whether the deception works or not.
Application:
Fall over and remain very still. Ideally choose a moment when you have just been hit or thrown to add to the credibility of the event.
Pros:
Buys a lot of time.
Cons:
The problem with this technique is that it can be used only once (unless special conditions apply).