ChatGPT confirms the way of announcement is quite unique: such cases, where lack of candor is explicitly cited, are not commonly reported in public corporate announcements or media. Dismissals of CEOs are often attributed to a range of more generalized reasons such as "differences in leadership style," "strategic disagreements with the board," or "underperformance."

While the concept of candor, or the lack thereof, can indeed be a factor in the dismissal of corporate executives, it is typically not the sole publicly stated reason. It’s more often part of broader issues related to leadership, trust, and communication, which are crucial for effective corporate governance. If such cases have occurred, they would likely be part of internal boardroom discussions and not necessarily shared in detail with the public or media.

If you have a particular company or event in mind, I could attempt another search focusing specifically on that.