My housemate needed $600 for a car repair, engine problem, couldn't wait. I transferred it the same afternoon. I'm not sentimental about money. I just wanted my friend to get to work.
What I didn't want was to become the person who had to ask about it. That's exhausting for everyone. So we put it on Vony: $150 a month, four payments, automatic reminders on his end. He paid on schedule every time. I never once had to mention it, and he never had to feel like he was being chased. That's a better outcome than most informal loans get.