From The Enigma
NPL Magazine
December, 2015
SANIT

The two key words to this flat differ by a single letter.

"Your beard's too shaggy!
  You must trim your hair!"
You tell me these things every day.
But frankly, my darling, I really don't care.
My _ _ _ _ _ _ _ _ _ is none of your _ _ _ _ _ _ _ _.

Answer:

BUSHINESS
BUSINESS