If you start complaining about everything, calling constantly, pressuring
and threatening him with legal action, etc. He may just not come back and
may not care about the money.

For the most part, I pretty much left them alone (just peeking in once in a
while) UNTIL they started disappearing and not showing up. Even then, I
think I was pretty polite about it, I didn't yell at them or anything. I did
point out a couple of things along the way though. Is that how I should
handle things? If someone frames a wall crooked, shouldn't I point that out
at the framing stage? or should I wait til everything is done so they either
refuse to fix it or need to tear everything down? This is a brand new house
and the builder made some crooked walls. I pointed them out early and they
actually tore them down and rebuilt them. When I noticed another crooked
wall towards the end, they just tried to hide it with different molding.

In the current case, for example, I pointed out that a electrical box was
too low and crooked AFTER he installed the switches and switch plate and
started patching the drywall. Obviously he had no intention of fixing it. I
realize there is some adjustment and play in them and he could have adjusted
the crookedness, but not that it was too low. And is he going to cut into
drywall after he has patched it only to patch it again? probably not. Is he
going to magically put back the carpet he cut all jagged and too short?
probably not. Is he going to fix a crooked wall after everything is done?
again, probably not. They'd just give me the I'm "being too picky" line.

And this is after his first coat of mud/caulk was LITERALLY SMEARED on the
wall like a kid fingerpainting. Half the screws and tape are exposed. I
watch This Old House and Hometime. I know what a first coat is supposed to
look like. And one drywaller I had did a good job downstairs and I saw how
his first coat looked. Now obviously, for a TV show they are going to be
perfectionists, but still, I take that into account.

I dunno, I will admit I am pretty picky. But I think I give people a chance
to do it right. I guess I have to give them more chance in the future. When
I was getting shutters put in and pointed out a problem with one, the
installer was pretty rude and pretty much told me to get the hell out of his
way. Ok, he fixed it and my concern was unwarranted. But some things like
framing, etc are easier fixed when in the framing stage.

On the other hand, I guess I get annoyed when someone watches over my
shoulder when I'm doing something .