Like... Baked potatoes? This is not a fad that I recall participating in. It either must not have made it as far as the Toronto area, or I was an oblivious pre-teen for most of the 80's (at least one of those facts is 100% true). A quick google yields this Ask Metafilter thread that mentions the fad of everything coming in bar form (salad bars, sandwich bars, pasta bars, etc) in the 80's... But this is something that I have absolutely no recollection of. TIL, I suppose.
I was going to make a joke about there being no good jobs on the east coast of Canada, so even well educated people end up working at convenience stores... But that's mean, and I'm not sure if it's even true, so I will refrain. But in general, at least in my Ontario-based wanderings in Canada, most convenience store employees (or owners, or often it's owner/employees) are very nice, well spoken, respectable folk.