CEOs tend to be optimistic by nature, but if they’re too upbeat about what lies ahead they’re likely to stir up the always-lurking plaintiff’s bar, which seizes on unfulfilled business plans as evidence a company failed to disclose material business risks.

Among the latest companies tripped up by a failure-to-disclose suit is Portland, Oregon-based NuScale Power, the first firm in the U.S. to receive federal certification for a small-scale modular nuclear reactor design.