There is one thing that stands out in my mind and it comes from the lovely land of Azeroth. Now, this happened at a time when I was already disillusioned with WoW. Pretty much all the people I had come to rely upon as regulars had either quit or were way ahead of me in leveling (stupid homework making me take a one week break).
People who play Undead in the game will know the quest I'm talking about if they ever went to Tanaris. There's a high apothecary in the Undercity who wants you to take a field testing kit to the Tanaris desert, harvest samples (I don't know what of) from the local wildlife, then use these samples on the testing kit and see if they give her the data she needs.
There are some fatal flaws with this however:
You must buy the kit yourself (Not much by 43rd level, but come on game! We're talking about the Royal Apothecary Society here.) In order to make the damn thing work, you need to bring water pouches to a goblin so he'll give you a power source. This isn't so bad, except that the kit only works for 6 hours. And that 6 hours keeps ticking even if you're in the safe zone of an inn.
As for the test samples themselves, they are a whole different ball game. Firstly, you need 8 USABLE samples from rocs, basilisks and hyenas. Not so bad, right? Oh yes. Oh yes it is. Firstly, the innocent animals are capable of ripping apart a Mage like myself, so even if I could nuke away half their health bar, I still stood a chance of dying if more than 2 of them ganged up on me.
Secondly, your character gets stunned for EIGHT GODDAMN SECONDS if one of the basilisks looks him in the eye.
Thirdly, not every animal yields a sample. Because the basilisk that was murdering me whilst I was stunned for the last eight seconds was obviously not an acceptable subject.
Fourthly, not every one of the samples yields a workable sample when tested.
Not even this would be so bad if it weren't for the hour and a half time limit I was supposed to follow (damn you, school!).
Oh, did I mention that the raw samples only last for 3 hours (because you're obviously not going to test them right away) and the usable samples only last for 2? No? My apologies.
Whilst all this kept me occupied for a couple of days, I had finally done it. I had finally completed the quest and was able to turn it in.
Except I had failed the quest the first time, thus rendering it not able to be completed unless reaccepted. Which involves abandoning the quest. Which destroys all quest items.
RRRRRRRRRRRRRRRRAAAAAAAAAAAAAAAAAAAAAAAAAAAARRRRRRRRRGHGGGGHGGGHGRRRRRARHRGGGHAHGAHGEHGHGAHGGAGHGHARRRRRRRR.