Why are Neurologist/Neurosurgeons so mean/unfriendly?

Maybe its just me.But iv been to my share of them and they seem like up happy to serious and strange.I went to one back when i was about 15 and he did the whole exam in literally 3 Min's.And he kept walking in and out the door.And he was very monotone.Then my mom saw one about a year ago.She had to have back surgery and he was a complete @$$hole.Extremely rude.I have herd story's of other people having the same experience with them.I don't expect them to be my best friend.But geez