If a tank loses aggro, whose fault is it?

[Jim_Berry]

When I tank I consider it a personal failure of mine whenever I lose aggro for any reason. In this case, the tank is at fault completely.

+1

Was doing a Sephirot farm. I engaged without realizing I didn't have Shield Oath on. I felt bad when I lost aggro shortly after the pull that I remained quiet, and felt like leaving

The group forgave me, though, as it was an honest mistake.