Reminds me of Archy on Shakespeare [1]:

  here i am ben says bill
  nothing but a lousy playwright
  and with anything like luck
  in the breaks i might have been
  a fairly decent sonnet writer
  i might have been a poet
  if i had kept away from the theatre

  ...

  well says i pete
  bill s plays are highly
  esteemed to this day
  is that so says pete
  poor mutt little he would
  care what poor bill wanted
  was to be a poet

[1] http://ianchadwick.com/blog/three-archy-poems-by-don-marquis...