[ogwh]

You need to:

1) Figure out the type of person who caused the trauma

2) Learn their psychology/world view (there are books on abusive personalities)

3) Learn to recognise them quickly

4) Have a plan to deal with them

5) Profit (you'll always have the upper hand)

By doing this you take away their ability to do anything. For some types this riles them up, which can be advantageous in eliminating the threat but also dangerous. You can plan for this.

Good luck.