They may not be faking it. If this is truly a spirit manifesting, it is no doubt a demonic one. (A fruit of the Holy Spirit is self-control.) These people remind me of the demonically possessed people with whom I have worked at Venice Beach, when this outreach of apologetics first began.
Here is what demonic possession looks like (even in the name of "Christianity"). This is not Christianity.
http://www.youtube.com/watch?v=Gjl5wKso9eU
