Kirk passes a homeless person on the street. kirk is most likely to this person if the costs of:

If Kirk passes a homeless person on the street, he will probably come to the aid of this person if the costs of helping are not high and if he feels better about himself by the fact that he is helping another person. 

Since the time there were born it depends, there's fun violence, abuse, r@pe, kidnappings, threats, hostages ect.