Yesterday, leveling roulette gave an alt's WAR Gubal Library. Had a newbie, which I loved because I was needing the second chance points. Healer mentions they're new to healing (or at least healing the dungeon), so I did smaller pulls. Everything goes well, then first boss hits. I wasn't sure if the newbie was actually new or just someone on an alt, and I think the others weren't sure as well, since no explanations went out.
Anyways, the newbie died to the first area swap. Then healer went down, then the BLM. All this happened around 40% or so left on boss. Meanwhile, I was trying to stay alive as much as possible to hope that I could clear, only to fall at about 5% or so. Failed at that, but learned newbie was actually new, so explained mechanics that were shown and off we went. The rest of the dungeon went amazingly well and I'm sure the reason I got three comms was due to the attempt at a solo clear of the first boss.
Today, leveling puts same alt into Vault. Right off the bat, had a DPS who apparently had better things to do as they would wait until the last few mobs were left alive and would sprint off to the next set (or in the case of pre-first boss, sprint off towards the steps leading to boss). I'm also not sure if healer was in a ultra DPS mindset or what, but I have never had to Holmgang so often just to try and self heal, even with buffs and Conv up. I'm honestly surprised the run went as semi-well as it did, only had a few deaths (RDM got knocked into the vuln portals on second boss and healer stood in bad while trying to holy the vodoriga near the end and died to chains near the end of last boss).
I can understand getting into a DPS tunneling on healer, I've done it. I just don't understand DPS who think they don't have to help finish killing things just because it's trash mobs. If you feel like you have some place better to be, why are you even queuing up in the first place?