Hmm, that could be a little poem on its own:

BEAT POEMS

It's not okay to beat poems.

You may not know this, but I once snuck a poem much like that into the Wall Street Journal:

BAD POEM

Put that rock down.

The Journal used to run poems all the time; mainly they were couplets about golf. If you've got Lexis-Nexis you can look it up.

UPDATE: Suddenly the obvious revision/sequel:

BEAT POETS

It's probably not okay to beat poets either.

God this joke is too easy -- somebody must have already made it sometime or other. Any E-Z Bake Ovenist or Actualist Archivists in the house?