My group and I have been playing Werewolf: The Apocalypse from White Wolf Publishing for the last dozen years or so. In this game you take the role of the Garou (werewolves), who work in packs fighting a losing battle to perserve Gaia (the Earth) from the "hell bent on destroying everything" entity known as the Wyrm.
What you need to know
D.N.A. is a human corporation aware of the werewolf "disease." Legitimately working for what they believe is the greater good of humanity, they were taking great lengths to cure the lycanthropy "disease" known to them as GLS. An unknown informant sent our pack to investigate this virtually unknown company. We were prepared to find something dirty, but instead found much worse. There were cages with young potential Garou locked up and obviously experimented on. There was also a Crinos (complete werewolf form) Garou on an operating table, deep into autopsy. In a fit of rage, the pack has slaughtered everyone in the complex, save one doctor. The doctor's arm was just severed by an enraged Sekhmet, who then used his gaia-given powers to seal up the wound. Renoa Kest, Rune Alterone, Rahn-Runs-Like-Legless-Dogs and Sekhmet-Rain-Maker were present. Sekhmet was barely keeping his rage in check.
"please...please d...don't kill me...please I...I have a wife and famil..."
The scientist reeked of blood, sweat and, urine. His pleas for mercy were borderline hysterical. The technicians at this facility have taken a chemical compound which makes them immune to the normally mind-shattering effects of seeing a Garou in his full Crinos warform. It, however, did not save him from the horror of facing four enraged Garou.
"Shut up!" Sekhmet growled more than yelled as he paced back and forth with a fire burning deep in his eyes. Rune stood to the side of the human, holding his .45 to the temple of the jittering man. Rahn and Renoa stared in a mix between horror and disgust at the truth of what has been going on in the name of "bettering humanity."
"How many...how many have you tortured and killed for your precious science?"
Sekhmet stormed over to the man. The heat of his rage could be felt by all those around him. "You are going to tell me everything...everything...that you know about my people...everything that you've done. Every moment you hold the information from me, I will add an hour to your torture! Do you understand me?"
Never before had Sekhmet's rage been so violent. His body was shaking and teeth were gritted at the outrage of it all. They had tortured his people, tried to invent a process to destroy his people, and took steps to ensure that these children would never reach their destiny. This was genocide.
The scientist's whimpers and cries only fueled Sekhmet's anger. He looked to Rahn, barely able to keep his human skin as he shouted, "Rahn, cut his ear off!"
A moment passed before Rahn's reply.
The room fell silent. Sekhmet stopped mid-pace, turning to Rahn.
"What...did you say?"
"No. That's enough, Sekhmet. He doesn't know anything, and if he does, he's in no position to talk anymore. Cutting him up any more isn't going to solve anything."
As if instantly, Sekhmet stood before Rhan, chest to chest, eye to eye.
"I'm your alpha, I gave you an order. You will do as I say, or by Gaia herself I will put you down!"
"I said no!" Rahn replied, almost on the brink of rage.
Sekhmet's rage influenced Rahn, so his body also began shaking. They stared each other down for what seemed like hours, neither body moving. Both were walking a delicate line, using sheer willpower to avoid entering the mindless killing rage known as Frenzy.
Their heartbeats were like cannonfire. The silence is broken by a roar as Rhan's body instantly shifted, contorting to the massive crinos form. With lightning quick reflexes, Rahn swiped at Sekhmet's chest. Sekhmet's body shifted to match Rahn. The two figures collided, blood and fur flying as their mindless rages urged them to kill each other. Rune and Renoa were aghast. They rushed to the corpses of the facillities security crew, taking the tranquilizer guns from the bodies. They took aim and fired shot upon shot into their two berserker friends.
All goes black.
The mood of that night went from business as usual to deathly silent. Rahn's player and I were really in each others' faces. Tense wasn't the word for the rest of that night. Our storyteller and rest of the players were walking on eggshells trying to avoid what was promising to be a full on brawl. Eyes were glued to us until the end of the chapter. Then we looked at each other in awe of what just happened. Everything in that story built to that scene which not a one of us would have seen coming in a million years. Games have come and gone since then, but if you were to ask them, to this day the others will swear that Rahn and I were really about to beat the crap out of each other.