Okay, if you are a mage and perhaps something dropped that you wanted but lost it and you got pissed... then here is the right time to get back at your group. At the area where Rend and Neffy is you see a big gate where the mobs come from. Well.... run up there and blink through the gate and agro all the mobs to kill you so when the gate opens every mob back there comes and attacks instead of coming one by one! And the best part is you can't go back because it's bugged!
This may not be used much but it's pretty funny