Oddly enough me and my dad were swapping out the spark plug wires on my car. Some were moderately easy, others were a bit more complicated, but three of them go underneath some part that we really were not prepared to take out just to replace the wires. They're still there sadly. But yeah I know I have a relative who started out like that, and another friend as well.
Edit:
By the way, thanks for the tip about buying Hayne's Repair manual, they don't do manuals for my car (Ford Explorer '99 - nevermind I think I found one) but I never thought about buying a repair manual to begin with, it would probably get me going in the right direction, and give me a lot more relevant information.
As for the mobile app, I mentioned it because they had an iOS app already.
Edit:
By the way, thanks for the tip about buying Hayne's Repair manual, they don't do manuals for my car (Ford Explorer '99 - nevermind I think I found one) but I never thought about buying a repair manual to begin with, it would probably get me going in the right direction, and give me a lot more relevant information.
As for the mobile app, I mentioned it because they had an iOS app already.