Dear neighbor,
I understand that you have a small child. I understand that the small child likes to play. However I am so sick of hearing you banging and running and jumping above my head that it makes me want to scream. You wake up my dog from a sound sleep with your banging and make her bark like crazy. Your kid is currently jumping up and down so loudly that the tissue box on my desk is shaking in time with your kids jumping. Today you were bouncing a freaking basketball on the floor for 2 hours and made my cat hide under the bed because she thought we were being attacked. If you weren't such a scary biitch who would punch my lights out before I could say anything, I would come up there and give you a piece of my mind.
Sincerely, the tenant in the apartment below you who is praying she gets out of this hellhole soon.