on most haunted living tv channel,a team investigated
paranormal activity in a public house in the uk.four
of them was in a room and a guy fell flat on is back he
said he was punched in the
stomache my a ghost and repeatedly kicked the others got him out it was hilarious.i don't believe for a minute a ghost can duff someone up..

Ive had many experiance with goast. 
About six months ago I was attacked by a goast while hosting his great granddaughter overnight in my house.  My body split, my pysical was in bed and astral sitting at the kichen table with the reading light on. The interesting part of the experiance is reading his thoughts........  He was thinking, " I been wondering in the darkness and was curious about the light, I havent seen light for a long time."
At that point his face which I can discribe in detail was up against the screen window which has a hole in it. I grabed a chopstick off the table and poked it though the hole at him (all of these things physically exsist) Then I felt his anger and knew I was his enemy, something flipped in him and I felt he was going to rape and murder me becuase he knew there was no man in my house.  I ran to the back door to lock it , then ran to the front door to lock it and sat there pushing on the door with my back.  he was spirit so he entered the house with no problem and was now in front of me and though I didnt see a gun I felt him direct it at me heard a bomb like sound, felt the wall vibrate and my right arm in pain.  Then he was on top of me, At that point I put my astral body and psyical together and he was now on top of me in the bed, slowly he disintegrated but I could feel him.  That was my first and only attack.  WHY?
I called the father of the girl who was at my home and asked who in his familythat was on the other side was voilent.  He hung up and came over to talk.  I told him what the man looked like and he confirmed that it was his grandfather who was a hit man for the mob.  He and his daughter had just returned from a visit to his mothers a couple days prior and his mother was the child of rape, this was her father.  This man lived his life raping, drinking and murdering.  He tried to attach to his grandson, when the spirit encounter me he battled my light, and then habit took over and tried to rape and murder.   
I cleansed my home and children the next day.  Funny thing, after that I had intense pain in my right arm for months, I had it worked on often.  Also there was a poster of Krishna behind my arm next to the door, there was now a red blood like drip exactly in the spot where my shoulder was.


So yes, ghoasts, depending apon the nature of who they believe they are can attack, especaially if they dont know that they are dead.

Nomad,

I think such "entities" can occasionally cause physical harm to some of us or "take over" those who are vulnerable or those who make themselves so.   This would include most of us at times, I would think.  But we can create a peaceful place for ourselves, inwardly and outwardly.  Guides and helpers are there for us.  When we clear our sight enough to see them any darkness falls away.  These folks on these shows seem to enjoy frightening themselves, don't they?

love, blink