Give and Take

 PC Patrick's Weekly Musing: 

When you're training in a big group, the energy (both positive and negative) of the group is contagious. The right combination of people, combined with the enthusiasm of the leader, can lead to excellent workouts for many of the people in the room. 

 Likewise, it only takes a few people complaining or slacking to drag the energy level of the entire room down. Gravitate to people who push hard regardless (Durst, Gaja, Carson, etc), and be aware of the energy that you are contributing to the group, because it does affect those around you.