Never let this turn into a feud.

Can a person's heart really change? The person who used to ask me for money to help him recover his losses, I helped him recover his inventory in one day, but I feel like I've harmed him! I think he really believes that I am someone who can always make money, and he has already started talking about borrowing money from me to play, offering me a 10% profit. Now that I think about his previous behavior, I really don't dare to accept that 10%, because if something goes wrong, who knows what kind of problems this person could cause! So this time, it can only be like this; if I can help, that's enough. In one day, I earned over 1000u from 500u, but there’s really no other way!