So Berkeley professors have been besieged by protests and spurious fire alarms this week as people protest about their fees going up (again). I don’t want to talk about the California budget situation right now, because it just makes me angry and — well, that’s no fun.

So instead, here’s a picture of one of our intrepid Cal professors finishing his lecture outside, using one of the exterior walls of a campus building as his chalkboard.

Your mission, should you choose to accept it, is to caption this photo.