Scenario: You happily join Arena 5v5 with your 19 twink. Everything turns out good untill you get to last millimeter of the loading bar. Then BAM, you get disconnect. You wonder, "what?" Log in again, and try to get on your 'leet' twink. But when you log in, it says something that instance server not avaible blablabla. But then you log on to your 'leetier' main, and do some arena/pvp/losing/whatever. You get tired and log off for the day, then you log back on next day on your 'leet' twink. What do you get?
Note: This is "not" a real story..... xD
This:
That is some good-shit calculating by blizz..