person A: When I was a teenager_comma_ I was exhorting money from kids in my neighborhood. Now_comma_ I feel bad about it.
person B: Oh wow_comma_ how were you doing that? 
person A: I was stronger because they were just kids.
person B: I'm sorry you feel bad about it now. I'm not really sure what I can say_comma_ it's not like you can change the past. You could try volunteering. 