How do you deal with rude players on Maple?

As the thread title says, how do you deal with rude players on Maple? Throughout my nearly-four-year experience of playing, I have had to deal with a lot of very ignorant, stubborn, and utterly pathetic people on Maple who go out of their way to make other players around them miserable. I won't go into any details, but you know what I'm talking about.

This really bothers me as I enjoy the game, regardless of what I, my buddies, guildmates, and other good people in-game have to go through. I try to handle these situations in a civil manner, but it leads to frustration every single time. I was just wondering, how do you handle these situations?