Seriously - who's in charge?
I'm a software developer and I work from home most of the time. I have a Biomorph desk that I generally have in the up position so that I can stand at it.
Well, Kaiser likes to grab his squeaky ball and push his way between my knees and stand there squeaking the ball for a bit. Once he's done that enough he'll drop it and look up at me like 'ok, your turn'. Of course being the dumb human in the relationship I pickup the ball and toss it out of my office in to the entry hall. He goes and gets it and we repeat the cycle.
I'm researching puzzle toys to see if I can find some other avenues for him to express his boundless energy through.