Put into Lifetime Detention by Death

Reptilia28 Challenge. Harry learns the fallacy of forgiveness at a Maternal!Reaper's knee. He realises that maximum control is the only way to destroy the Voldemort ideology. ALL Death Eaters(inc Snape) are bad. Max Revenge, Min romance, CRACK/heavy tropey/OTT elements, so distrusted but not bashed Weasleys and Dumbledore. (Add pinches of salt to taste!)