Why do people who claim to be 'enlightened' act like jerks much of the time?

You would think that those that are spiritual and claim to be enlightened would be very relaxed and at ease with many of the daily occurrences and tribulations they encounter throughout their daily lives. Yet, I've encountered people that are the exact opposite. They seem to be more agitated and cynical than most. Is it because they feel like no one else is 'on their level?' They feel non-enlightenment = stupidity or idiocy? What's your take/experience? And, yes, HOLLA. (This one's for you, ungodly...)