User blog comment:XGlass Reflection/Ch. 50 Review~ Lesbian love!/@comment-32788838-20131008220244/@comment-7418318-20131008223451

With the Titan's ability to regenerate any kind of non-lethal damage within minutes any non-lethal damage accounts to zero anyway. But "absolute" zero is not true, since we saw Hannes cutting off the Titan's fingers.

Apart from that we only saw the very beginning and the very end of Hannes fight, but the middle wasn't even shown, so we don't know how long Hannes held out and how well he fought, only that eventually the Titan got him.