(Note,I did go through all the searches for "Return to the abyssal shelf and no thread like mine was found)
The quest,"Return to the abyssal shelf" Requires to bomb some mobs while on a gryphon,but if you miss a couple and you then start to fly away,you can alt+f4 (Must be at an specific location,see screenshot) and start up a new WoW,if all is done correctly the gryphon will be half way towards the abyssal shelf,so no need to keep flying back. If you alt f4 when your closer to the shelf you will be sent back to the quest giver,also slightly useful. I could not upload a video because the filesize was too big. Here is the fore mentioned screenshot.
image dosent want to show up,heres the link: http://tinypic.com/r/302mbu8/6
Thanks for reading.
UPDATE: If you alt f4 anywhere in the shelf while on the gryphon,it will take you back to the questgiver on login.