@odenskrigare,
I would go further to say that when someone evokes the supernatural for an explanation, they are really often confusing themselves into thinking they have an explanation when really, they have said nothing about the event.
When person X say: 'A ghost moved my lamp', they are in effect saying 'something made my lamp move, I am certain it was a creature I know is an ontological possibility'
A creature is ontologically possible if and only if it is verifiable in principal. Furthermore; a creature is supernatural if and only if it is not verifiable, otherwise it is natural and has some measurable effect (sense data is measurable in terms of biochemistry). You can sense something if and only if it is natural and in the domain of science.
So if you claim that the creature was supernatural, or has no possible scientific explanation, your sentence automatically reduces to 'Something made my lamp move, I know that nothing did it'. This is a result of the confusion caused by language like 'supernatural being' which is a contradiction but does not seem like one to someone who is not well versed in science or they do not have a clear meaning behind what they say.
In short, supernatural claims are symptomatic of muddled or unclear thinking resulting in unclear communication. If you do not have a clear conception of a 'ghost', then saying 'a ghost did it' as some sort of final answer is essentially a contradiction.