Lol I feel for you man. I try to do people favors and save them hundreds of dollars. The only thing I usually get is some ignorant comment about how they want a professional to do what is in reality a very simple task. Man I had this 8iacth of a gf not long ago, she didn’t have much money so I offered to do her brakes if she just bought the pads. Well, I kindly offered a few times but I’d get “I have no money” or “What if you break my car?” or some other BS response. I’m like fine, what ever, I would have done the job totally pro gratis if she would have been the least bit appreciative. But the rub is I knew the brake pads needed replacing, but in her ignorance they were fine. Well she drove them way past metal to metal, and only when the noise and smell (not to mention the car would barely stop) got so bad THEN she asked me to fix them 4 months later. I was like nope, you need a profession now. So $600 later she had her wish.
Welcome to the real world where good deeds rarely go unpunished.