1. Discrimination in an employment situation.
2. Erratic/aggressive driving to and from work that endangers others.
3. Taking credit for someone else's work.
4. Treating service providers as inferiors.
5. Jokes or remarks that mock another's race/gender/age/disability/sexual preference or religion.
6. Children who behave aggressively or who bully others.
7. Littering (including trash, spitting, pet waste).
8. Misuse of handicapped privileges.
9. Smoking in non-smoking places or smoking in front of non-smokers without asking.
10. Using cell phones or text messaging in mid-conversation or during an appointment or meeting.

"The research suggests that people are bothered more by the transgressions of co-workers and strangers than by those of family and friends," said P.M. Forni, director of the Civility Initiative at Johns Hopkins, who conducted the research with David Stevens, Treva Stack and Stacey Lee of the University of Baltimore. This is interesting in itself, Forni noted, but the next necessary step for the research team will be to find out why. "Maybe we are less rude towards family, or maybe we are more inclined to tolerate rude behavior when it comes from family," Forni said.