Strike. Scream. Run.

Dick is stood at the front of the class with his other 3 brothers at a desk in front Jason on the far left, tim in the middle and Damian on the far right. "Listen up you three! Self defense is not a boxing match with friends." Dick informed his brothers. "Jesus Dick calm down my head is killing" Jason mumbled out "shut up Todd" Damian said from the other side.

"Self defense is simple you strike" dick hit the training dummy next to him. "You scream" he let out a scream. "And you run" dick ran to Jason and back to the front. "Now Damian you try!" Damian looked at Tim hit him and screamed "yes!" Before he ran out of the class.

"...that may have been my fault" dick said from the front of the class. Tim still being young started quivering his lip before bursting out in tears "jaaaasssooon! He hit me" Jason just stared in shock before pulling a gun out and charging out of the class!

"YOUR DEAD BAT BRAT!" somewhere Damian's laugh could be heard whilst dick was trying to comfort the crying Tim. Meanwhile Bruce and Alfred are out on a trip completely oblivious to the carnage happening in their manor. The end (unless you want a sequel)