Tanks
  • Running to aggro full map as soon as duty starts. Who cares the buffs! Who cares to check if healer not afk!
  • Sitting ducks in AoE. Tank does not need to dodge anything!
  • Aggro pack of mobs when party haven't any AoE. More mobs tank aggroes, more cool he is!

DPS
  • Who cares the aggro? Aggro is tank's job, he lose it, he is to blame!
  • Who said DPS is a DPS? We are tanks too and can happily go ahead tank and aggro mobs. Then blame tank when we die because his fault haven't got 'em.

Healers
  • Healing in cleric stance.
  • Use cure2 when Tank have lost 1 hp.
  • Tank died? Ho well, I was busy on DPS or else I'm called a bad healer!

There are a lot more, just have put in some... feel free to add