Bite your tongue?!!

[Carrottop]

Can anyone here give me some advice on how much to apply the "tongue biting" technique.  I have a polygraph in two days, and the agency that I am testing with uses a "seat sensor" (and it would just be too risky and foolish to chance it using the anal pucker).  

[Carrottop]

Does anyone know.............................

[George W. Maschke]

As noted in The Lie Behind the Lie Detector (at p. 150 of the 3rd edition), the bite should be hard enough to cause pain but not hard enough to cut your tongue.

[anythingformoney]

If you are a real liar, bite that forked tongue right off!  That way you'll be more inclined to be honest in your everyday interactions with other people.