Working out in the “big boy” part of the gym can be a bit intimidating.  All the flexing and grunting, wow!  The advantages of working out with free-weights are dramatic, but the downsides can be just as big.  This article explains the more dangerous exercises and some safer alternatives.  http://www.musclemagfitness.com/fitness-and-exercises/general-fitness-articles/worst-weight-lifting-exercises.html