The Office of Government Ethics has published its annual listing of major conflict of interest cases involving federal employees–along with some involving military personnel–that were prosecuted in 2016 by U.S. Attorneys or the Justice Department’s Public Integrity Section. The listing serves as a kind of warning about the type of behavior that can lead to not just career trouble but also criminal prosecution.

Several of the cases involve post-employment restrictions, including negotiating for future employment with an outside party while still employed by the government, or improper communication to a former agency.

Several others involved failures to report on financial disclosure forms gifts or outside income received from entities doing business with the agency. These included cases involving gifts of tickets, spa services and vacation; outside income while still federally employed; and free travel for personal reasons.