"I'm not sure the people who use it are entirely 'normal' people."

In other places, in other times, the word 'military' would have been enough to close Finnick down, make his expression turn even more guarded, his eyes narrow in suspicion. But here, he's slowly learned that not every military or police force is like the Peacekeepers. He trusts his own judgment enough to know that not everybody here with those sorts of connections is like the people District Two sends to the Capitol, or the ones the Capitol sends to the districts to man their machine guns and put down their citizens.

Nida reminds him more of himself than them.

"I could probably go a little faster if I tried. But I'm a bit out of practice. Haven't done much of this since I was a kid."

There's a little falseness in the modesty, but a little honesty, too.