Gee, I guess it is safest to at least somewhat check (ASAP) the work of a mechanic after you get your car back.
I took it to a supposedly decent shop for replacing timing belt & diagnosing weird loud engine noise and that turned out to be the power steering pump. After done, I took car back and did some driving of it for work & errands. Today, I was just looking over engine and noticed a nut that’s sticking out and not tightened to the engine and it’s part of the power steering pump (see photo, roughly in the center). Nut wasn’t loose loose per se, but it was turnable and not fastened properly unlike the other surrounding nuts. I ended up hand tightening it flush to the mounting location then finished with a small adjustable wrench to tighten securely in place.
The car/engine drove fine before I noticed this issue. Do you think any problem/damage could have occurred while that nut was kind of loose? Hope I’m safe & cross my fingers. On a side note, all the other nuts on the power steering pump appear to be fastened properly/ok, it’s just this one nut, so I don’t think it would be all wobbly when the engine was running. Good thing I noticed this in time.