Years ago, the Rockies had a journeyman player named Pacheco who was up and down a bit, and when he was called up the reporter asked what the biggest difference is, he said better food and walked away.
I've said this before, but last season Sox would often bring Bummer in with the game on the line and a left-handed hitter up. He would invariably walk that first guy, and then he has to face the next two righties, and Boom.