​Can a believer be "possessed" by a demon?

I think the word "possess" really bothers us. A believer can NOT be "possessed" by a demon because Jesus Christ has already taken up residence in their heart. I do think, however, that a believer can be so controlled by the enemy that you couldn't tell the difference whether they were possessed or not! If the real question is can a believer act just like the devil and be influenced by Satan and his demonic forces ...the unfortunate answer is yes.