Ghost Removal Services

It had to happen didn't it?
At one time you just popped round to your local church, chapel, mosque or whatever and politely asked your chosen holy man to come round and bless your house. After a few prayers and incantations and chucking a bit of holy water around, the troublesome spirit or poltergeist gave up the ghost (DEFINITELY a pun intended) and left in a huff (or was it a poof?).

Now (apparently) you can call in a professional ghost clearer. I have seen a few websites during my travels on Google, a lot of them seem to have one thing in common - they charge for their services. I have no issue with anyone making a living, but how does one go about getting qualified as a ghost remover? The obvious puns such as "going to night school" and "working the graveyard shift" spring to mind, but I do have a few concerns with people outside a recognised religious structure or learned organisation offering paid services to scared or worried people. The psychological aspect has to also be brought into play doesn't it?

If you do hire a professional ghost removal service, personally speaking I would ask them how and with whom they hold a qualification. How they plan to go about their service. Ask if they are insured, ask them for references from satisfied clients, and finally ask if they give a money back guarantee.