1. Peer Pressure
   1. Aggressive comments targeting a particular viewpoint.
   2. Judging other's idea
      1. I disagree to...
      2. I am an expert on this, let me tell you...
2. Time Management
   1. Participant taking too long
   2. Participant not speaking
   3. Should the session be halted when no one contributes?
   4. Should we speed up the process?
   5. Should we extend the session?
3. Off Track Ideas
   1. Out of boundaries
      1. How about ... in ten years?
   2. Too hard to do tasks
   3. Idealized resolutions
4. Social Loafing
   1. Lack critical analysis
   2. Lack constructive conflicts
   3. Lack productivity
      1. Someone will eventually speak...