It's fascinating to hear about your experiences, DSJR, especially how cannabis condensate might have had an impact on audio equipment back in the day. The analog sound quality and the ambiance in that audio store must have been quite unique.
Should have said it was cigarette smoke from Dunhill-International ciggies, not anything deeper...
Later on, I worked in a place where the boss, who rolled up (literally - cough) in the afternoons mostly to do the book-work, used to smoke strong week (stems as well?) and the fumes from this used to permeate the small store. He was taking an effin' gamble as we had serving policemen as customers...
Alcohol is my vice, or used to be when I had money available and before I married, this latter which took much of the need away
I've never ever smoked, so can't comment further on this.