This is pretty random I know, but it's been on my mind..

Was talking to a guy today, he'd had one of the front shockers on his car changed, though after checking himself he realised that two of the bolts that hold it to the body at the top were only in on a few threads yet the other one was done up all the way

Would the two loose ones have worked their way loose eventually due to vibrations etc. and the other one aswell? or would it of still held? Been thinking about it all afternoon as it shocked (no pun intended) me

depending on the roads the car is driven on (bumpy) they can get loose.
btw...sue the mechanic who did that

And this kids, is why you use Loctite and torque everything up correctly.