Ok, I ran VC the other day with a group that would refuse to wait for my mana to refill or for me to lay my totem down for them.
I was the healer for the group and I ended up leaving them cause they just kept leaving me behind trying to pull the instance faster than my non healing gear could support.
I tried to explain to them they needed to wait so they didn't die. Hell I let the tank die twice trying to get through to him. (we had another tanking class there)
What do you do about people like this? Just /ignore them or leave the group? is that the only way to solve the problem?