You are out an about sacrificing yourself to help, save, rescue, feed, defend... settlers... and what you get in return >>> sometimes is just no gratitude.
"Got work to do, can't talk now".
"Hope you ain't one of them synths, here to spy on me".
"Ain't looking for trouble, I hope".
"Got a dangerous look about you. Hope you ain't here for me".
"You better not cause any trouble".
"We ain't got any handouts, if that's what you want".
"Just so you know, I'm keepin' my eye on you".
It changes those Dialogue lines above, from "DialogueFarmGeneric [QUST:0007BAFF]", with a condition so they don't say it.