Generally speaking, what are the attributes which people who get fired tend to share?

Grim topic, but I work in a field with a lot of turnover, and often hear of people who get fired (not laid off), although I am always disturbed and befuddled (and paranoid…), as these people seem perfectly competent, talented and driven, but for various reasons turn out not to be a “good fit” (a very convenient HR rhetorical device). Obviously, this will vary depending on the circumstances—specific industry, job, and supervisors, etc.—but I’m wondering what are the most common factors, sequences of events, personality traits, behaviors, actions, etc. which get some people fired. Does anyone have any stories of coworkers, friends, etc. who got fired for a particular reason? I’m interested—and want to learn from their mistakes.