[ Stopgag? There is no stop-gag. If he does something wrong, if he goes hungry, if he flips out and attacks someone, the measure is to kill him. And he doesn't even know how can someone kill him without a nullifier, he doesn't know who can.

He lets her speak, though, silent. because some can pretend to be human better than others and how he envies them at times ]

...

I don't have a stop-gap measure, besides someone killing me. [ and that is a lot harder than it seems, but a Titan could certainly do it ] I have asked for a nullifier and it stops my strength and all the enhanced abilities I have, but... it's doesn't stop my hunger. Actually, with a nullifier, I get even hungrier. [ it feels like it, at least. ]

Killing me... it works. [ yes, he is repeating it. ]