One night in the late 90s writer Irvine Welsh turned up at the Cavern. He was extremely amusing, the photo shows him singing 'Silver Lady' by David Soul! I think he'd been researching a book or something and popped in just before we closed.
As you can see, this was in the good old days before the smoking ban. Bar staff would rest their fags on the T-bar while serving you a drink. Sales Reps would turn up with a fag in their mouth. Wairesses would bring your food over squinting, trying to keep the smoke out of their eyes and stop ash falling on your plate when they served you. Even Environmental Health guys would spark up while they went about their business. I can't remember whether Irvine Welsh smoked - probably.