For those of you who do [quest=12541]Troll Patrol: The Alchemist's Apprentice[/quest] and want to throw something out of frustration, I came across this addon to help. I havent used it yet, but I plan to try tomorrow after daily reset.
http://www.wowinterface.com/downloads/info11786-EasySerum.html (http://www.wowinterface.com/downloads/info11786-EasySerum.html)
although the first time I did it I wanted to choke a bitch, that's actually not so bad a quest.
the trick is to do it first. if you don't succeed in a couple tries, abandon it, go back to light's stand, abandon troll patrol, and retake.
After completing it a couple times you get the hang of it.