Criminal convictions that prevent the nurse from keeping their license or that may make them unfit to continue working in the healthcare field. Unsafe practices that leave patients at risk of being neglected, actively harmed, or mistreated. Substandard care that harms patients while exposing both the nurse and their employer to liability. Boundary violations, including sexual or romantic contact with patients, accepting money or other gifts from patients, leaning on patients as a source of support.