Before the turn of the century, Pamela Dalton, a noted sensory psychologist, created a concoction known as stench soup on behalf of the Department of Defense. There was a desire to find an odor or set of odors that would quickly stop a group of people in their tracks, dissuade them from their purpose and make them want to flee the scene. In this case, the military was interested in discovering non-lethal means to get an enemy to drop their weapons and disperse.
By all accounts, she was largely successful, but the true recipe has thankfully never been divulged.