Court Jester

My desk at work is part of a large open plan office space that we share with a group from a different school. There is one particular student in their group who wanders. He spends ages walking around the floor, weaving in and out of desks, stopping to look out of the windows and generally irritating me. I face the window with my back to everyone so that the only indication I have that someone is approaching is a reflection in the window and nine times out of ten it's him. It's getting to be really annoying. I came out of the toilets today to find him strolling up and down just outside of them. The one amusing thing is that he looks just like Timothy Claypole from Rentaghost (although I don't recall ever seeing the wanderer smile). Unfortunately he's probably too young to remember Rentaghost.