“The sight of those notice boards arouses every evil instinct in my nature.” What does the above line reveal about the character of the narrator in „Three Men in a Boat‟?

J is referring to men who feel they own parts of the river sticking signs and notice boards along it. This makes J really angry. He even has violent thoughts about punishing and murdering the men who do this. This tells us that J was passionate about nature and felt the river was for everyone.