Do not mess with Sikhs. In India, they have long fended off both Hindus and Muslims, both of whom try to mess with them.
They have a strong reputation as being fierce soldiers.
We had a lot of Sikh families coming to our gym when I taught swimming. One of the sweetest little students I had was a little Sikh boy. He was TERRIFIED of water, but he knew he had to be a man and learn to swim.
He was a good little student, and man was that little dude brave.