Those who study human behavior have noted a number of characteristics in angry people:

1. Tardiness
2. Obstructive behavior in groups
3. Cynicism
4. Tabbing jokes
5. Disrupting conversations
6. Sloppy job performance
7. Loss of enthusiasm
8. Depression
9. Procrastination
10. Eating disorders
11. Sexual dysfunction

[Charles F. Stanley, "Surviving in an Angry World"]