I come from, apparently, one of the few families in the universe that butters its bread or bagel (or, now, brushes it with olive oil) before toasting it. So of course, that side is the side facing up in the toaster. But if the toaster has a wire rack, the other side gets toasted too.
We always had a flat toaster oven, which makes this easier. Long ago, some housemates in my first college residence were aghast when I tried to apply the same principle while using a pop-up toaster. How do people live with those? If you don't do the buttering the instant the toast emerges, you just end up pushing a cold, hard butter pat around on top of dry cold toast. Scrrrape.
Perhaps all that is why I don't actually eat toast very often for breakfast; not really a bread person. (-:
Though a cinnamon-raisin bagel with cream cheese ... Or buttered toast with that spreadable kind of honey ...
In the days before children were sedentary and carbs were a no-no, my grandparents used to let me pour honey on my toast and eat it with a fork and knife like a pancake. They didn't even own a toaster, they just made toast by putting it in the oven under the broiler, so, yes, it got toasted only on one side. My job was to watch the toast and say when it was done.
South central US, liberal arts education, the (1/8) German side of the family uses paper towels for napkins at breakfast.
OT: Werner, you're not serious, are you? Or if you are, are you sure it wasn't the tea? (-: