Yes.

When I was in college, I was at home alone in the apartment I shared with 2 roommates. I was sitting on the couch, and I saw a rubber ball bounce from the door towards one of the bedrooms, then a boy of about 6 or 7 chasing it.

I told my roomies I wasn't staying there alone anymore.

Then one of them told me that she had seen the ghost too.

Before they were University Housing, the apartments were for regular families...