That'd an older episode and the hot tub, I believe is on the roof or whatever, of his apartment. Wasn;t he drinking wine on the chair in his living room in that one?
What about the episode in which he gets into a mud bath...does anyone remember that one...he was NAKED....REALLY NAKED in that episode...or so we thought. At the end of the episode...it shows him going into another room to shower...but it looks as if he is wearing something to the effect of rubber pants that babies wear. (That's the one that he slaps his butt) Oh well....but then he emerges again in just a towel and boots I believe....being all dirty...hitching a ride outside. Just imagine you're driving down the road and there you see Mike in just a towel....one could only hope.