Can Christians be demon possessed? Can somebody who is a born-again, saved Christian through faith in Jesus Christ be possessed, controlled, or otherwise manipulated by the devil, demons or any other spiritual force of evil? Are there specific limits in place when it comes to Christians that are not in effect for the rest of the world?

 Note: this is a subquestion of whether demon possession itself is legitimate but a significant issue on it's own.
Nowhere in the Bible is a Christian demon possessed.

I heard someone say that a Christian cannot be demon possessed because they are possessed (filled) with The Holy Spirit.

Since we don't appear to have any Biblical reference, I think that's that best answer we can give (unless anyone had a clear counter example).