REALLY???!!!!

So this week I was reading some of my friends facebook statuses and was confused. They say They are Christians, they go to a private christian university, however they get so mad and freak out over the little things such as a person parking a little close to their car so they cant open their door. They freak out when things are not their way, yet if someone doesn't agree with them they are the bad people. Why are people so selfish and intolerant? Why are people so egocentric?