preconcived idiolagys

On the train the other day I heard too oldish punk style old men (both of whom where bald- what that has to do with it I don't know) Any way they were discussing the merits of certain vitiamins taken in the morning and which they had taken. I just found this very surreal as they were not who you would have thought about taking these sorts of things.
I suppose this sort of thing is me being very, well, stereotypical.

I was suprised to find my self thinking like this as these kind of ideas are really what I dont like but then if we always knew what we were going to think we would never be suprised by ourselves and never inspired to look depeer in to ourselves.