A New Evolution to An Old Game

[greendryad]

I was walking across a mostly-empty campus after work yesterday. As I travelled, I saw two guys walking into a building side by side. They looked like teenagers, particularly punkish in dress and haircut, but maybe they were here for a summer workshop or an orientation. Suddenly, one shoves the other sideways and shouts, "Tag, you're it!" with a grin on his face as he jogs into the building's open door.

The other guy laughs and runs in after him. I grinned to myself too, but since when does tag involve shoving?