Have you ever had any paranormal/supernatural experiences happen to you?

yeah i was an my friends farm house and he went inside so i went in a little bit after him. i didnt see him downstairs so i went upstairs to where his bedroom was. his bed room door was closed and shaking wildly.. i called out to him and got no answer. i stood there kind of freaked out to why the door was shaking. i went back down stairs and my friend was by the porch.