Ouch.
On the first line, do you mean to have "I'm a funny guy"? Not that there's anything actually wrong with "I'm a funny", it just changes how I read it, since "funny" can actually be taken as being a cartoon -- an interpretation I quite like since it adds to the whole facade idea.
A+ for guffaw, there aren't enough of those in poetry these days
He he, 'twas an "intentional error", something to make the reader "trip" into the piece.
It worked then. Quite amusing also that the biggest laugh comes from the clothes... now if it was written in the 80s I'd totally understand it.