I once took my dad's Pontiac to one, and it had the Iron Duke motor with a wide drain plug and the filter cartridge up inside the engine. Stamped on the drain plug: "Tighten 1/4 turn after gasket touches". But would they do that? No. One place made it so tight the 12-point socket rounded off the head when I tried to change it the next time. Couldn't even get it off trying to tap the edge of the plug with a chisel or with Vice Grips. Ended up taking it back, and they had some special tool to get it off, but had to replace the drain plug after they mangled the heck out of it. Every time after that, I would bring my wrench with me, and warn them that I was going to check it when I drive out, and if it's too tight, they will make it right. One manager gave me the admonition not to come complaining when it falls off or starts leaking after they had to loosen it, to which I pointed out the car had 180,000 miles on it and it had NEVER leaked or fallen off when installed correctly.
I took my Saturn one place, and they came out to tell me they didn't have any 10W-30. I asked them why they would be telling me this when it clearly says 5W-30 on the cap. "Oh, it does?". I had my share of places showing me the air filter and trying to sell me a new one because you can see dirt in it. Wow, what a concept; air filters catch dirt! Even if I had only changed it 3000 miles before they would try that trick.
They would invariably over-inflate my tires. The last place I ever went to I made them come out and fix it after I drove out and checked with my own gauge. If the door sticker says 30 front and 26 rear, I don't think that means to put 35 all around and show that on the bill.
I don't go to quickie lubes anymore. I will happily endure a cold garage and get dirty knowing it's done right.