Unfortunately, most of the weirdest stories comes from either NA servers or EN speaking players
For CT, I've actually never seen anything other than taking bone dragon at the center.
I'm from the Elemental Data Center which is the JP servers, and the JPs themselves are mostly so organized that things only goes wrong once in a blue moon, and you can clearly guess which player screwed up (yeah, usually the special ENs).
It has always been like that. Whenever I enter CT or ST and I checked the party list to see a team of EN players, I knew something will go wrong somewhere. 99% accurate.
Last night, in a single ST run:
1st boss: you can surely expect daybreak to petrify everyone else. the other two alliance went downhill and at least 75% of their members died. Left with my alliance with 6 people being whacked all over by adds and boss and maintained by me (SCH) and my other WHM partner. Eventually the WHM caught aggro and died and left me to solo heal. And when I got targeted by the ice, I walked to my team mate with the fire and he bloody ran away from me to the other end of the arena. Seems like he wanted the last standing healer to die as well. Thank the twelve the boss was only left with 1-2% and we won eventually with less than 8 persons total standing.
2nd boss: a simple job of pulling and tanking your own clockwork knight at the correct spot to kill it went wrong, one of them came and killed my EoS.
Last boss: After clearing the starfall circle thingy, everyone was nicely near the center waiting for Xande to return and anticipate that grey ball thing and stack to soak the damage. Casted Sacred Soil (nothing to spend Aetherflow on anyways) and covered everyone just nice. Oh well guess what? That player who got the grey ball runs all the way to the edge of the arena for god forsaken reason. LOL we just let him die there.