Used when someone has made a mistake that directly harms their own interest or objectives. Neglecting to proofread your application can shoot you in the foot.
Pro Tip 2/3
Unintended Outcome
Emphasizes the unintentional aspect of the action that causes harm or setback. Calling in sick too often might shoot yourself in the foot when looking for a promotion.
Pro Tip 3/3
Avoidable Situation
Suggests that the negative situation could have been avoided with foresight or careful action. Talking back to the manager is a surefire way to shoot yourself in the foot.