Disclaimer: Alas I do not own Batman.
Batman snarled as the Joker took out a knife. Nightwing was supposed to be here by now but he may have bailed. Tied up to a steel chair with the Joker standing over you holding a knife is not the ideal way to spend your night.
"Ready?" Joker asked with his ever present grin. Batman only glared in response. "Good then. Let us begin." Joker grinned and leaned in. The first cut was to his face, across his cheek. It was just a light cut, barely even stung but Batman knew it was going to get much worse if Nightwing didn't arrive. Batman snarled as the Joker dug the knife into his leg. "Had enough yet?" Joker asked as he left the knife embedded in Batman's leg and got another one. The second knife was dragged across the other cheek and then embedded in the other leg. Joker cackled in malicious glee. The third knife was about to make contact with Batman's knee when there was a crash. Joker frowned and put the knife down. "Sorry Batman but we'll have to stop for now." Joker said as he moved behind Batman and out of his line of sight. Batman struggled and tried to free himself from his bonds but it was no use and the movement only hurt his legs which both still had knives in them. He snarled and thrashed about in the ropes.
"You should stop before you hurt yourself." Chide a voice from behind him. Batman repressed a relieved sigh at the sound of Nightwing's voice. He shuddered when he felt Nightwing's cool fingers against his wrists to untie the ropes. He felt them loosen around his wrists and then he felt the one on his chest fall.
"Better?" Nightwing asked. Batman rubbed his wrists roughly before pulling the knives out of his legs. Batman left the question unanswered as he tried to get up. His legs wobbled and he fell back down to the chair. "You can't walk." Nightwing said matter-of-factly.
"I can." Batman retorted. "I'm fine."
"No you're not." Nightwing said a bit more harshly than necessary. Batman shot him a glare but before he could make a snappy retort Nightwing had thrown him over his shoulders.
"Put. Me. Down." Batman snarled. Nightwing let out a small chuckle but didn't comply. As he trotted off through the hall Nightwing had to step over bodies. Joker's henchmen were all scatter throughout the hall. "You did all this?" Batman asked incredulously.
"I was angry." Nightwing said simply.
"Most people find more normal ways of expressing anger. Angry sex. Yell. Argue. Punch a wall." Batman said as his eyes fell on Joker. He was pinned to a wall by knives through his arms and legs. There was blood everywhere and Joker's head hung limp. "Nightwing." Batman gasped at the scene. Nightwing said nothing he simply kept moving. They got outside and Batman was finally put down as he landed with a thud on the passenger seat of the batmobile. They drove in silence until they reached the bat cave.
"What was that?" Batman demanded.
"That was me saving your life." Nightwing retorted.
"I mean what you did to Joker." Batman snarled. Nightwing sighed and got out of the car. For a moment Batman was scared Nightwing would leave him there until he saw a flash of blue and the door was opened.
"He got what he deserved." Nightwing growled angrily as he scooped Batman up bridal style. Batman wrapped his arms around Nightwing's neck.
"What happened to everything I've ever taught you?" Batman demanded. "Right out the window."
"I lost control okay!" Nightwing barked. "I lost it and people got hurt. People who deserved to be killed got hurt. I should have killed them all!" Nightwing yelled as he dropped Batman into a chair and stormed off.
"What happened this time?" Alfred asked in his lilted British voice.
"You should have seen it Alfred. It was like he lost his mind." Batman said as he tugged off his mask. He felt blood smear across his face but he was too tired to care. "Bodies everywhere." Batman mumbled before drifting off to sleep.