The Baloney Detection kit. This was done by the Richard dawkins foundation based on a Carl Sagan principle. This is useful in so many areas of ones life, but especially useful to a body piercer for evaluating new products and ideas.

1) How reliable is the source of the claim?
2) Does the source often make similar claims?
3) Have the claims been verified by somebody else?
4) Does this fit with the way the world works?
5) Has anyone tried to disprove the claim?
6) Where does the preponderance of evidence point?
7) Is the claimant playing by the rules of science?
8) Is the claimant providing positive evidence?
9) Does the new theory account for as many phenomena as the old theory?
10) Are personal beliefs driving the claim?