It's been a long time but an aunt helped me out financially and she specified she did not want the money back. Later when I tried to pay her back, she actually became irritated and said she didn't want to discuss it. She wasn't mad; just didn't want to talk about it. Go figure. A good woman, though, and we've always had a nice relationship.
I've given money to a few siblings - they didn't ask but I had the resources and knew they were going thru tough times or they had helped me in other ways. No payback, and that's fine. :shrug:
Years ago I lived in an apt bldg which was quite lovely when I moved in, but throughout the years the quality of tenants deteriorated and the turnover became more frequent. The last 2/3 yrs I was there a couple of my neighbors became quite annoying.
There was a grocery store and a drugstore within a block - very close. Sometimes as soon as I came home from shopping someone would knock on my door and want to borrow something - an onion, a couple eggs, a cup of sugar. I had a standard answer: "I don't buy extra groceries". In other words >>No.
Some of you might think that was not very neighborly. Well, I never borrowed from them, and I had no desire to be their friend other than exchanging a 'hello'. They didn't like my answer, but the way I saw it they could go to the store as easy as I could. It's not like they were sick in bed or anything.
OTOH I've had/have a few neighbors I consider friends, but borrowing/lending doesn't enter into the equation.
When I was working, there often were people who were
moochers...money for vending machine, lunch money, money for parking, a cigarette, hand lotion, bus fare, etc. Other than chewing gum or hard candy/mints (which I gave away), I never got into a loaning arrangement. I mean, really, unless you lose you wallet what adult comes to work without bus fare or lunch money?

I used to smoke but never "bummed" cigarettes. Once in awhile I'd give/sell someone a cigarette,but that got old real fast. I told a couple people "If you can't afford cigarettes, maybe it's time to try to quit smoking".