My upstairs office neighbor

This morning while trying to work here at my office PC, a constant thumping could be heard from the concrete ceiling above. At first I thought I could ignore it and get on with my work but it just got more annoying especially since I was listening to Chopin piano sonatas playing on my PC's CD drive. So I went up to the second floor office to see if I could stop the noise. All the offices there had their doors closed except for one where a young fellow, possibly a student or a young instructor, was working at a PC with headphones on. And he was stomping on the floor with his right foot in time with whatever music he was listening to! The poor fellow looked thoroughly embarrassed and apologized profusely when I asked him as nicely as possible to stop the stomping.