Left alone in a cage with a mountain of cocaine, a lab rat will gorge itself to death. Caught up in a housing bubble, bankers will keep selling mortgage-backed securities -- and amassing bonuses -- until credit markets seize, companies collapse, and millions of investors lose their jobs and homes.
And news anchors and television personalities who have their own shows, Web sites, blogs and pages on Facebook.com and MySpace.com will send Twitter messages until the last follower falls into a coma.
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