An odd memory trigger

Because I've been putting in extra hours at work lately, I take pride in the calluses I've developed on my left hand.  That's a sign that I've been working hard.  Admittedly, "I've been doing a lot of vigorous typing lately," doesn't have the same ring to it as "I've been down in the mine a lot lately." Maybe, it's better to recall the calluses I formed from playing Sammy Nestico's "Pressure Cooker" on the bass.  With all its fast, constant shifting, that's one callus-inducing piece of which Nestico--and any bassist who makes it through the tune--should be proud.