Originally Posted by Off Road
Not if proper form is used. A lot of guys hurt their backs with overhead lifts because they push away from the center of the body (lean back or push away).
Yup and here is the crux of the issue. Was the exercise dangerous or did the trainee just get greedy and/or sloppy? In most cases it's the latter. In that situation you can't really blame the exercise.
I don't think any useful exercise, within reason, is inherently dangerous. However I will say this; certain exercises require conditioning to enable them to be performed safely. But that should not be a reason to ignore them.