Consientious shops torque lug nuts. I has some tires replaced once and the shop had a process that I just loved!
The tire guy went around each wheel and torqued all of the lug nuts, then signed the invoice. He handed the torque wrench to a second employee who checked the adjustment on the wrench and then double-checked every lug nut. Then he signed the invoice! They must have had a wheel come off at some point to go overboard like that, but it sure made me feel good to see it.
I always torque the lug nuts and check the air pressure anytime someone else has the wheels off (Costco for tires, etc.). The lug nuts are usually overtightened (some of them), and the air pressure usually varies +/- 10 psi.
Experience is something you don't get until just after you need it.