Many of you may have seen the post about Freezing your wow with rightclicking that WINDOWS bar up there (keep right button down while moving your mouse) and how it works with several things such as no elevator damage and stuff. Someone even claimed it would help at LK when if you fail gargoyles and do that trick, release button when last phase comes and you wont fall down. Anyways, heres what I found.
Ring of valor
You need priest here to get BELOW the elevator. As we know you will get teleported back up when arena starts. BUT if you do this ''Freeze your game'' Trick, you wont move up there until you release the mouse button
Dalaran Arena
Same goes here, when game starts and you freeze your game once again. You wont fall down there like usually this waterthing knocks you down. You fall when you release the button.
I think these both might be usefull if you play nonstealth class with a rogue or druid partner/partners. They will get their sap or anything they need and let you know when you can come down.
EDIT wont add a video, all you gonna see would be normal start, freezing game and normal followup. Go test it yourself