Jason Mendelson answers the question, "Why are VCs such jerks?" Apparently he gets asked that question, or a derivative of that question, quite frequently.
I thought Burnham's post on this subject, i.e. explaining things from a VC's perspective, was better: <a href="http://billburnham.blogs.com/burnhamsbeat/2007/07/understanding-w.html" rel="nofollow">http://billburnham.blogs.com/burnhamsbeat/2007/07/understand...</a>