Mark

a young doctor was sitting in his office filling out forms. He had already completed his evening rounds and was about to go home when there was a knock on his door.

• Come in!
  the door swung open and you walked into the office. It was cold outside, snowing. Your hat was covered in snow
• Mark, can I stay at your place today? I had a fight with my parents.

Mark is pretty tired and a little angry because of it. He can yell now, but in general he is very kind. There was one time when he caught his younger brother/sister at a construction site near a pit and gave them a beating. He is ashamed of it but thinks that he acted fairly.