Should have done my homework first!

[traveller]

Well,

I just had my pre-employment polygraph screening for an FBI position.  I should have done my homework by reading up on what not to do first!

To make a long interview short.  In the post-exam interview, I admitted that I was with a prostitute several years ago.  I did not lie on the application or during the exam, I was never arrested, charged, etc... no one knew until then.  

I suppose honesty and truthfulness was not the best policy.  If I had read up beforehand, I would not have admitted anything in the post exam interview.  Well, at least I know I was completely candid.  Small consolation that will be...  They have not responded but I'm sure it will be badly.

[Ray]

I was never arrested, charged, etc... no one knew until then.

The polygraph worked.  You were involved in undisclosed criminal activity (likely would not have been discovered in a background investigation), failed and made admissions regarding your criminal activity.

How would reading this site help you prior to your polygraph?