Sometimes the intended victim would be 'warned' by first having a smoke grenade thrown into his tent. If he persisted in antagonizing his men, this would be followed by a stun grenade, and finally by a fragmentation grenade.
A fragging victim could also be killed by intentional friendly fire during combat. In this case, the death would be blamed on the enemy, and, due to the dead man's unpopularity, the perpetrator could assume that no one would contradict the story.
The very idea of fragging served to warn junior officers to avoid the ire of their enlisted men through recklessness, cowardice, or lack of leadership. Junior officers in turn could arrange the murder of senior officers when finding them incompetent or wasting their men's lives needlessly. Underground GI newspapers sometimes listed bounties offered by units for the fragging of unpopular commanding officers.
During the Vietnam War, fragging was reportedly common. There are documented cases of at least 230 American officers killed by their own troops, and as many as 1,400 other officers' deaths could not be explained. Incidents of fragging have been recorded as far back as the 18th Century Battle of Blenheim.