What's the weirdest ritual you were part of?

I went to an island of Andaman Nicobar filled with indeginoius people few months ago. It's part of India. They drink and serve human milk.

Their women don't wear blouse. Men were extremely mascular and cover the front part.

They had a ritual that people will have to paint their buttocks with blood of the animal you will eat. Then they burn and season with some spice. Then they serve you to eat.

All the visitors did that. They even asked visitors to pee infront of everyone as it's a sacred thing to them.

What's the weirdest ritual you were part of?
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