Based loosely on the Chaos Theory. Each move starts with a reaction to the previous move and ends with an action incrementally greater than the previous. With chaos ending at the usual place.
The maths classroom was hushed except for the hurried tapping sound chalk on a blackboard and whispering from the back. The teacher spun around and flung the piece of white chalk at the culprit...
...who deftly batted it back with the cricket bat he had concealed beneath the desk. "Jones," cried the teacher, "go to the headmaster's office immediately!" However, Jones was having none of it. He approached the teacher's desk, bat in hand, and moved to strike him with it...
Newton's third law was not to be denied, however, and so the teacher's leg likewise smashed into splinters. Then, as he landed on the floor, his other leg broke as well.