Some scenarios:
Fighter version: I was doing Mean Giant Honeying, and the fighter tank never uses mock. Therefore the clerics who keep healing just get mobbed. -.- And he definitely buys SC. So, the conclusion is: Nowadays, idiots buy SC and mess up everyone else.
Cleric version: I was doing Millenium Robo and the lv34 cleric in our team decides it's smart to bash mobs and not heal. Since we kept aggro well he didn't die, but I....soon decided to trust my HP stones. We actually killed Robo, but I didn't get the kill -.- and I only got 5 t2 hp pots (again) -.-
Or, if that wasn't bad enough, I was in a party to kill ZK. On our way to our 3rd ZK we pulled a lot of mobs, so we were dealing with them. And then the cleric pulls ZK and kills the tank and himself. -.-
Archer version: I'm in a party in GC and the archer decides, I'm brave so I'll keep pulling. And he has to pull one at a time...so I ignored him, and pulled a few more
But really, the worst are the stupid fighter tanks and the mob-bashing clerics. It sucks really bad when they don't do their job well...I don't even know how they got so far (lv 4x) without learning their ropes. At least I know to spam heal as a cleric and keep aggro as fighter. So, what about this: Next time all Fiestafan will join hands to pwn KQ!