You hear someone cursing at a cashier in the store. you think, "wow, what a mean temper! " which of the following concepts best explains your initial judgment? cognitive dissonance fundamental attribution error foot-in-the-door phenomenon obedience

Congnitive dissonance

This is more likely to be due to cognitive dissonance; the state of having thoughts, beliefs, or attitudes that are inconsistent, especially in the sense of relating to behavioral attitude change and decisions. 

Ongoing civil wars western roman empire finally collapsed476 c.e. romulus, the last of theroman  emperors in  the west, was overthrown by the germanic leader odoacer, who became the first barbarian to rule in rome. the order that the  roman empire  had brought towestern  europe for 1000 years was no more.