Bokuden and the bully

Bokuden was a great swordsman who liked to travel. One day, while riding a ferry, a bully started bothering the other passengers. He took the best spot on the boat and waved his sword around. Bokuden was not impressed. The bully challenged him to a fight. Bokuden agreed but said he would not need to use his sword to win. Can Bokuden live up to his amazing claim?