So I figured I would list up a few quests to let boxers know what will be too time consuming to attempt on high or even medium population servers. Feel free to add your own!

Hyjal:

Save the Wee Animals: Run around trying to right click small animals that move insanely fast and dealing with random aggro of near instant spawn mobs. Fun.


Slash and Burn: Get on a dragon and bomb stuff. Sounds easy right? Nope, spawn times are ridiculous, probably 5 mins per mob and seeing as you have to kill 40 of one type.... Add in many players randomly firing in vain hopes to get a kill. Ya this one took me near an hour.

Might of the Firelord: Ok this one was bad bad bad. Kill quest with very limited amount of spawns. People were running around casting AoE spells as fast as they could. Another hour of time wasted. Watch for the Flame Ascendants as they are the rare spawn you will eventually be waiting on.

I might add more later, but this was a nice NERDRAGE while I'm waiting on the server queue

As a boxer I would just grind instances and then go back when it settles down.