It made me think. Why do we make enemies? Is it because we don't really know how to make friends? In Agile Work, where communication, collaboration, teamwork and truthfulness are so important, making enemies is the worst thing a person can do. (It might not be such a big problem in mechanistic environments.)

The golden rule is a good starting place for learning how to make friends. Esther derby has a great course on teamwork that could help. An of course there's the old classic: How to Win Friends & Influence People which really is very good (if a little dated). If anyone knows some other good books or resources about learning to make friends, please reply in the comments!