Treat all others the way you wish to be treated. This includes even the trolls (see: Do Not Feed the Trolls). Making threats can end up a real-life criminal offense, so think before you act. If you are abused by another editor, you may contact an administer, who can review the case and possibly block the offending editor for a variable amount of time. If you are unfairly blocked, you may protest this on your Talk Page, and an administer may review the case, potentially unblocking you.