To Make A Difference (гет)

Lily Evans sees her friend Severus Snape hung upside down by the Lake. She comes and the Marauders taunt her... But what if she snaps? What if, for once, Lily got her hands dirty in the name of friendship and -- is this it? -- fraternity?
A Gift Fic for mikeellee, the author who created the story mine is heavily inspired by. This is mostly a little fic to satisfy an unsatisfied thirst for a Lily who takes no shit from violent recidivist bullies.