Firestone doing something right? I hear it happens sometimes (but
people see the Nessy monster too, sometimes):

My daughter had her oil done there once. Right after that job, the
engine blew by seizing and throwing a rod.
When I found the oil plug missing and went there to yell at them, the
manager said that "99% of the time those plugs don't just fall out"..

At that time I wasn't sure what scared me more:
that they figure that sometimes plugs are supposed to fall out _OR_
that they actually have statistics on it....

They replaced the engine, after much grumbling and arguing on my part.
Firestone may have one or two people at their facilities that actually
know what's going on, but most their mechanics there aren't, IMO.
(or/and they've never heard of a torque wrench).

Remco
..