I've adopted a policy of not working on friends, family, or co-worker's PCs and networking devices. My mom and dad get a free pass, though. Other than them, I dont work on family or friends computers. The temptation for an easy $50 or $100 just isn't worth your time. You may think you are done after an hour of working, but the calls for other IT help will come from this great friend or family member.
I made this mistake back in my mechanic days. Yeah, I'll replace your spark plugs for $50 or change your starter for $100. Every once in awhile I get contacted by a high school "friend" that needs car maintenance done or has a specific jeep question. It usually goes something like this :
Them: Hi
Me: Hi
Them: How have you been?
Me: Oh just effing fantastic. I am just enjoying the clear blue skies, chocolate rivers, and kids running around with gumdrop smiles
Them: Awesome.
Them: Hey I have 96 Jeep Wrangler and I want to put 35 inch tires on it. How high do i need to lift to put these tires on it?
Me: 2-3 inches with cutting and 4-5 with no cutting
Them: Great. What is the cheapest lift kit I can buy
Me: $200 will get you the height, but it wont get you the performance you want
Them: fantastic. $200 it is. I am sure you can put it on for me for a 12 pack of beer. I am also sure the performance will exceed a $4k lift kit with $2k installation.
Me: Ok. I like Miller Lite
Them: Oh wonderful I will pick up a 4 pack of natural ice or busch. Your choice, buddy. Don't worry they are tall boys so each one equals like 10 beers.
Well: I like Miller Lite and it's a cheap domestic beer
Them: Ok Natural Ice or Busch it is, but I can't exactly afford a 4 pack so a single tall boy before and another one after the job is complete.