The was a Ninja in one of the alliances in my run this morning that managed to pull off their ninja teleport ability while marked and bound for the first bosses Level 150 death. Guess where he teleported too, yep right into the middle of a massive group of players just as the cast was about to go off. Killed both healers from the MT's party and eventually caused a wipe because of it. It was just too funny to be annoyed by it.
I still don't understand how he was able to do it while bound by that cast though 0_o