Sometimes you spend x amount of time preparing an offer for a larger project to a respectable client. Then you might have lunch with your friend who works for the competition and do some shop talk while you are at it. You discuss in general ongoing interesting projects without disclosing details.

Suddenly you realize that you both are working on the same project by the same client and the competition is already hired for the job. Then you realize that you are used for benchmarking. =D