War, what is it good for? Sometimes, absolutely everything

After the Battle at North Bridge in Concord, while the British retreated and began their march back to Boston, some Massachusetts men found a wounded redcoat left behind. They did a terrible thing: They scalped him and left him to die.
Word about the atrocity reached the British, and along with their bloody exposure to American snipers and to our side's hit and run attacks, the British understandably concluded that they were fighting a new and vicious kind of enemy.