You didn't actually log out
Clicking the 'log out' button doesn't log your character out in some instances. When trying to log back in the login screen will prompt you with "Pleases wait 60 seconds" or "connections exceeded" even though you clicked logout while not in combat.
Steps to recreate:
Log in / out, change accounts. Multiboxing when?
Reported by: Animosity at Position(2919, 5290, 1)