So one day, it was before school, I walked into the classroom and Johnny Walker slapped me on the back with a chalky eraser. We started duking it out and wrestling all over the classroom. It was early so there were no teachers. We wrecked the whole classroom, tipped over all the desks and scooted them from their neat grid to a train wreck of a circle around the edges of the classroom, we spilled everything that was in jars in the class, and generally destructively re arranged the furniture. The hallway was full of kids watching. We were pretty evenly matched.
Finally a teacher turned up and broke it up. We were following the teacher to the principals office and Johnny looked at me and broke out in this big toothy grin. I smiled back and we both started laughing.
We were pretty good friends from then on.