You cannot single-handedly accomplish the mission. But you sure can screw it up.

Flagrant stupidity should be an offense meriting judicial punishment under UCMJ. It is certainly more damaging to the mission than smoking pot during leave or getting a DUI (both candidates for UCMJ action).

Target practice with a Koran in Iraq (a Lithuanian Soldier and two ANA Soldiers were killed in Afghanistan after people freaked out over this) and handing out coins with bible verses in Fallujah (thanks for reinforcing the AQI propaganda) seem to fit neatly into that category.