Simply switching chatrooms, perhaps to one with a chatmin, should solve this problem. And of course, be courteous at all times to prevent getting yourself in a situation.
If someone is angry; try to solve hes problem. If he ignores it ban him. And make sure it's a good reason to do it. A reason the bullier wold accept as truth.
Understanding the meening of life has two ways, one following it and the second understanding it