question on what is said before polygraph

[Q]

Does anyone think that if a person told poly examiner before his/her test about a friend who failed his/her poly and went on to pass the restest, if this could make the examiner fail this subject based on what was told?

[George W. Maschke]

I think such a remark (casting doubt on the accuracy of the polygraph) might well be interpreted by a polygrapher as a sign of deception.