Seeing Python where none exists

I wish I had a video to illustrate this point, but it doesn't exist. Let me paint you a picture with words.

I was watching a cooking show on tv and they were talking about how post-war immigration brought new cultures and flavours to Australia. Also how pre-war, going out to a restaurant was a rare occassion but it's become more common now. The narration was illustrated with various bits of file footages showing people dressed in their finest, going out to eat. One very quick shot was black and white of a restaurant, probably in the '60s.

What was really there: a not particularly pretty woman, dressed to the hilt and with perfectly coiffed hair.
What I saw: John Cleese in a wig.


What is it about 60's posh fashion that it makes me immediately think of Monty Python?