“… Mr Spratt has been making headlines around the world in the past few days after video footage emerged this week of West Australian Police tasering him 13 times, despite the fact he was already in police custody and posing no real threat. His ‘offence’ was to refuse to submit to a strip search. …” 
“… But son, as soon as someone puts their hands on you, they’ve crossed a line. Fuck them up. It’s the only thing these vicious freaks understand. They’re wild animals. They make violence on you, you need to show them that you’re the stronger, bigger animal. When someone attacks you maliciously for no reason, you need to impose your will on them. …”
And the first girl who uses an “indirect asymmetric attack”? This approach will not work.
“… Teach your kid to fight back and fight smart. Protect the weak. Be hell and misery to bad people. …”
There is a concept of proportional force  when you respond. If you fail to apply the correct amount of force, you could actually cause more damage to others and yourself. You do not want to “unleash the beast” inside. People are killed every day by someone loosing control and going too far.
There are long term “consequences” for this type of approach. Consequences for yourself and others. You have to decide before hand with a cool head what are your “rules of engagement”? Where do you “draw the line?” What is your justifiable, “proportional response”? Is it offensive or purely defensive? Are your “motives pure”? Are you going to “do harm” to save face?
If you want to “fight smart” I’d advise Akido (合気道) because the core ideas are faithful to the ideals of “be good”, “minimal harm“ and self preservation. Akido allows you to achieve this through redirection of force and removing “ego” from the equation. You can use Akido techniques for both physical force and psychological protection. Maybe these ideas are too subtle. But one thing I notice is the pattern of those being abused repeating the pattern of abusers. There are alternatives to break this cycle.
Remember, “your actions have real consequences”, short and long term. 
 Chris Graham, “All for one and one for all: police fail the attitude test” [Accessed Friday 8th, October, 2010] http://www.abc.net.au/unleashed/39804.html
 law.jrank.org. “Justification: Self-Defense – Necessary Force” [Accessed Thursday 7th, October, 2010] law.jrank.org/pages/1470/Justification-Self-Defense-Neces…
 Lynne Soraya, “Friends and Allies: What being bullied taught me about friendship” [Accessed Thursday 7th, October, 2010] www.psychologytoday.com/blog/aspergers-diary/200910/frien…