They might be...

Insane.

So couple of weeks ago new people moved into the 2nd floor apts, right across the way from me. (across the courtyard) And either they have a Wii, or they are crazy cause I can see them at night swinging at nothing, I am guessing they are playing tennis. But it makes it very funny for me to watch!

Haha ok I should stop staring. I will call Limb.