The armour worked. That is the problem.

Nothing has got through it in two years. Not praise, not a bad session,
not one person's opinion of me, good or otherwise.

And this morning a nineteen-year-old with the plates on wrong walked up to it,
asked for four seconds, and it held. It held perfectly.
I am standing inside a thing that has never once failed me
and I cannot get an arm out through it to point at a plate.

The Book of the Shadow — Wall 57:6