Alexander floor 3.

Beautiful day for express-farming precision gordian parts for 210 relic in a peak of hype. Yuni goes auto-MT to do not waste time on communication. We clear trash and proceed to boss section, insta-pull with 10 sec warning used when we were descending to boss section.
2 Power Slashes and Yuni drops Grit for additional dps boost.
<Horror music intesifies>
And then after 2 sec I hear <se.10> x 3 and healers using macro:
"No Grit/Defiance/Shield Oath - no heal! Use tank stance!"
"I will not heal tank not using tank stance"

Wipe in 30 sec.
3 dps leaving instantly just after reviving. Yuni curses the twelve for uber-scrub healers.

Note:
I didn't even have time to give them any reason to believe i can't use cooldowns properly.

From that moment i am scared of healers. And i don't trust them.