Doonesbury by Garry Trudeau for August 30, 2013
Transcript:
Jeff: Truth is, Zip, I can't shake my writer's block. Still got ideas, but no execution! I used to be able to knock 'em out of the park. Now I only get warning-track power. Zipper: Hold it right there, son! Jeff: What? Zipper: If you supposedly can't write, then where did that slick baseball analogy just come from? Jeff: I... I don't know. Zipper: You just tossed it off! Like a freakin' Hemingwad!
it seems I have seen this before