By sending cease and desist letters to companies who have an ex-litigation laywer as president:

Blue Jeans Cable Strikes Back

My favourite line:

It looks like when you sent this letter, you were operating on the premise that I am not smart enough to see through your deceptions or sophisticated enough to intelligently evaluate your claims; shame on you.  You are required, as a matter of legal ethics, to display good faith and professional candor in your dealings with adverse parties, and you have fallen miserably short of your ethical responsibilities.

Meow!

(via Jeff Nolan)