But then there is the guy upstairs from me. Just based on how fast he moves around, I can't imagine that he is super heavy. He is a very heavy walker. Two things are puzzling. How is it possible to clomp around so heavily? Is he wearing really heavy boots? It can't be good for the knees. The other question is why is he going from one side of the apartment to the other so much and in such a hurry? It baffles me. I refer to him as my elephant neighbor upstairs who is bored and paces in his cage.