There's this quest in Old Kingdom (daily) where you must kill the mobs in the beginning of the instance, loot them and burn their loot at the end of the instance. As soon as you loot these mobs you get a 60 minutes 'debuff'. It does nothing except from when it runs out, the loot will disappear and you wont be able to complete the q since it requires you to burn the loot at the end of the instance.
I am really sorry if this is a repost but this is what I found:
After approx 10 minutes we reached the Prince (2nd boss) (50 minutes of 'debuff' left)
We wiped at him (Yes... we wiped)
And as I ran back in I noticed that the 'debuff' for my quest-item had reseted to 60 minutes.
Exploit:
If you ever try to do this quest and are about to fail it due to lack of time, make a wipe and you will get another 60 minutes to do it in
Things that might have helped the exploit:
It was late night and might have been just as the server goes from night to day and resets dailies etc.
By the Way: It was Heroic mode