If you stay in the room next door to him there is a trap that will pop up from time to time and chain-dispel you. It doesn't just dispel you, it spams you with dispels about every 5 seconds.
So my group goes ok, there is a trap here, and we get a rogue from our guild to come out to disarm it. He successfully disarms it and it stops dispelling.. for about 30 seconds. Then it just starts right back up again. He has to keep disarming it every couple seconds because it just won't go away.
What kind of nonsense is this? Ok, it's a dungeon and there might be traps. But traps that keep respawning every couple seconds and then spamming you constantly? Pointless and stupid. The rogue can't even do anything because he's so busy trying to deal with this messed up trap.