Strange walks

There is a man who does this very strange walk/run past me in the morning on my way to work.
The fact that he can't decide whether he is going to walk or run is funny enough but he seems to be wearing trousers which are too big for him or he needs to go to the toilet cause he is always holding them up on the right hand side!
I think he is exercising but he may be a looper escaped form the crazy ward by the way he looks,
I'm going to have to ask him!