Let's put it this way.
Back when i was new i ended up getting locked out of the boss room because i wanted to watch that cutscene.
This did not sit well with people, and they kicked me for it.
Just like that, 40 minutes lost. I had to start over.
I was fuming mad.
Nevermind the first time i did the HW final dungeon, watched the cutscene right before the final boss...and the rest of the group rushed in and got killed in the meantime because i was the tank. And then they kicked me...RAAAAAAGGGGGEEEEE!!!
And a number of other similiar incidents.