I had two lectures today, for two different subjects, totalling three hours, and both ended up talking about Seikh's wearing turbans!
The first was a law lecture, for Comparative Law of Religion, and was to do with employment rights - that Seikhs working on a building site can wear turbans on their head instead of a hard hat (with the concession that if they get injured their employers are only liable for damage that would have occurred if they had been wearing a helmet).
The other lecture was politics, Contemporary Political Theory, and was to do with multiculturalism and the question of how you have many cultures living together and following different customs without enforcing a single overriding state culture?