Dangerous exercises

[Hans]

What about upright rows? This exercise has a pretty bad reputation.

Any exercise that puts your upper arms into internal rotation might lead to shoulder impingement eventually.
This is not just a matter of weights (swimmers are prone to it (cf. arm stroke in breast/butterfly technique)).

Besides upright rows the following exercises are also bad in this respect:

• bench press (and dips) with flared arms (esp. T-Bar bench press); alternative: close-grip bench press with arms tucked to upper body
  
• wide grip rows
  
• lateral raises; alternative: https://www.youtube.com/watch?v=q5sNYB1Q6aM
  

As a rule of thumb: Keep your arms close to your body while pressing and pulling.