A recent Fark Photoshop contest used an industrial safety poster as its source pic.
Warning! I repeat: Fark Photoshop contest. Not for young eyes or the easily offended.
Pretty much everyone else (with the exception of Yugoboy) riffed on the many illustrative diagrams and their captions, but I was inspired by an exhortative graphic in one corner:
Naturally, I saw Steely Dan.
(BTW, my favorite entry was bugdozer’s.)