I think there is a little boy/girl staying above us.
She (my sixth sense told me it is a girl) always jump around in the house, everyday and night. I am quite used to it except for my dad and sometimes my sister. They kept complaining. My dad even wanted to talk to her parents, but what can the parents do to stop a little child ?
Last night, my sister was in my room chatting and browsing the web. Suddenly, there was a very loud sound came from upstairs. We looked at each other and burst into laughter. She must have a serious fall ! Haha.. we are so evil. Maybe it will stop her from jumping for awhile .