Barbara: What?! No! Hide!
1) They know that more dwellers will be there, and they won't be on their own.
2) They are scared to experiment, with new ideas, or visit new places.
Kestrel:"In there room"
Fuller:"Ahhhhh, that makes sense"
Fuller:"'Cos there dwellers!"
Kestrel being me and fuller being fuller.
"remember when you took a girl into that hotel room a while a go and I wanted to use it and you wouldn't get out?"
"that was 3 years ago stop dwelling, your a class A dweller"
More specifically one who isn't as much concerned about the monetary rewards of driving as he / she is about living a Gypsy Trucker Lifestyle.
2: I had a good deal going hauling widgets from Baltimore to Harrisburg, but then this f*cking dweller came along and undercut my rate by 60%. You know they just don't care about making money, all they care about is making enough to buy chicken lights (ornamental lighting) and chrome naked girls for their mud flaps. F*CKING DWELLER SCAB.