The bit at the end with your friend was dry and not funny at all. I kept waiting for the punchline but he kept going on and on...I kept waiting for the joke, but there was no payoff.
Also the whole "If you didn't realize it was a joke, then that's the joke, you're the fool." Approach to comedy works only with clever material.
This was a terrible bit, and frankly I had wished it was real, The only true payoff to this bit would to have him be crushed under the weight of his own shirts.
Avoid having him on in the future please, this was pure garbage.