The traitor is the greatest enemy. Enemies who pretend to be friends or friends. He who seems so close and very in trust, but secretly he stabbed from behind. Like placing a dagger right in our heart, then he stabbed many times until we ran out of blood. After that he was happy for our death. There is no worse pain than betrayal.
You know, there are so many terms to mention for the traitors. Like Friends Eat Friends, Fences to Eat Plants, Enemies In The Blanket, Back Stabber (Stabbing From The Back), Enemy Hairy Sheep, Eating Bone Friends and other terms
regards @Parlo