Kirk Dixon, a Florida prisoner, alleged that a correctional officer used excessive force after Dixon went to the officers’ station to complain about an elderly inmate’s top bunk. Dixon had previously been disciplined for battery or attempted battery on an officer and lost gain time. The district court dismissed his Section 1983 complaint under Heck v. Humphrey, reasoning that his excessive-force allegations conflicted with the disciplinary finding. The Eleventh Circuit vacated the dismissal. It held that Heck bars a civil-rights action only when success would necessarily imply that the underlying punishment is invalid. A prisoner’s disciplinary punishment for battery and an excessive-force claim can coexist if the officer used more force than reasonably necessary after the battery or threat. Because Dixon’s claim did not logically require rejecting the disciplinary finding that he had lunged at the officer, the suit was not barred. The court remanded for further proceedings.