Was just messing around the other day and found a way to disconnect people at anytime, I don't see much point in this but it could be useful somehow.
Simple Steps:
1. Make target cast Hearth
2. Cast a CC on them that'll last longer than the heart cast time (i.e use sheep but use it about 1/3 of the way into the hearth so it doesnt run out before they finish)
3. The target should of d/c'd
it's worked on every server I've tried, but I've only tried about 3 or 4.