Dowsing?

[BrianSoddingBoru4]

Seems simple enough to test. 

1.  Take one hundred identical boxes and lay them out in a grid pattern.

2.  In two of the boxes, place a sample of whatever the dowser claims to be able to find. 

3.  Collapse in hysterical laughter.

Boru

Well, that's the thing, innit?  It is really pretty simple to design experiments to test paranormal claims. The difficult bit is getting true believers to accept the results.

Boru