answer: #Person1# blames #Person2# for not checking the bike when buying it.
documents: #Person1#: Look! It is not working well. Did you try out the bike when you bought it.
  #Person2#: No, there's no need. We can change it within two days if it's not damaged.
  #Person1#: But it would save a lot of trouble if you had taken it for a test ride.
  #Person2#: I know. I will pay attention to such a thing next time.