I started aikido as a teenager, and quickly got into the habit of bowing to people. It was not always well-received.

In senior high, I was the Chairman of the school board (a joint board for students, teachers, headmaster, and so on, in a radical Swedish democratic experiment at the time). When I bowed out of aikido reflex to the headmaster, my fellow students complained that I had become a willing slave of the establishment, or something like that.
The headmaster was amused.