Woke up with a handprint on my chest [closed]

At an undisclosed retailer where I used to be employed, I experienced countless unexplained things while working there.

The entire time I worked there, we all heard voices , items moving, etc. I was touched on the back of my neck by an unseen entity.

A few days after I quit, I got a message from my buddy Nick who still worked there at the time. He had gone to the restroom. As he was tucking his shirt, he noticed a large hand print on his bare back. The thing is - no one had touched him. Then as he exited the restroom and started to the back of the building, two boxes of product flew off the shelf right in front of him! Nick picks them up, puts them back on the shelf; and immediately they come flying off in the floor again.