Before I Sign May I Kindly Ask

Before I go ahead and Sign On the proverbial dotted line and place my John Hancock May I kindly enough enquire please What exactly currently is the going Rent you are charging For this lofty elevated empty space residing inside your head And does it have or provide any other benefits apart from the two holes on either side That seem to whistle like wind chimes which and whatsoever the prevailing wind doth blow And I see it also doesn't seem to come with or be furnished with a brain inside either Just a keyboard with a poster above it of what appears to be the sign you find on the door of most men's toilet's Sadly and unfortunately though the Knob looks as if it's missing too small or been mislaid Like the brain itself