I'm sure I've had mechanics that thought I was crazy.
"You know your gears aren't shifting correctly, right? Did you want me to fix it?"
me: "Nah, it's fine."
"Man you might as well scrap these wheels. Truing them just isn't worth it. It's sketchy as hell."
me: "Yeah I guess so *scratches back of head*. But I'll still ride it"
But this mechanic was cool, he gave me a list of places to buy used parts. The problem is I DO want my bikes in perfect working order but I'm generally so broke that I can never get this stuff taken care of. today though I bought a used fork for 5$ (with free help installing it!) when a shop quoted me 60$ for a new fork. Now that I've discovered that DIY shops DO exist, I think I'll be able to do more affordable work on my bikes.