I accidentally killed the healer in a dungeon once, because I was eating my lunch on the last boss when it did that eyeball + confusion thing and it caught me, the healer, and the other DPS.

It's okay, though. She kept regen'ing herself & tanks at the end of fights and before pulls even after being advised not to (to which she said "ty, but I already know that. /Continues to do it anyway."). Made for a pretty sloppy and difficult run for the tank.

I like to think of it as karmic retribution.
Muahahaha