person A: My little brother took my bike without asking me_comma_ and he left it outside the shop_comma_ then it got stolen! I'm so angry right now
person B: That was very careless of him_comma_ I'm sorry.
person A: Yeah_comma_ he does things like this all the time. He doesn't have any money to replace it_comma_ either.
person B: Maybe you should talk with him and let him know how serious of an issue it is to you.