NEW YORK (AP) — Innocent until proven guilty? Maybe not if the defendant is a CEO and the jury is a company's board of directors.

Best Buy's CEO Brian Dunn resigned this week after the retailer's board launched an investigation into his "personal conduct." The 28-year Best Buy veteran joins a list of big-name CEOs who stepped down or were fired after getting into trouble for their actions outside of the corner office. The alleged offenses — and the punishments — have varied widely from lying to cheating.

Some wound up leaving their companies with a golden parachute. Mark Hurd, former CEO of Hewlett-Packard Co., for instance, resigned and received a severance package worth $30 million after an internal investigation by the company uncovered some expense-account irregularities.