Plead the Fifth

A younger gentlemen comes into the store for his appointment to get his fingerprints taken.
I check his ID and pull up his information on our system. I let him know we are going to start with his index finger. He holds up his hand, looks at it for a moment, then asks "which is that?"

Better yet, he was getting his fingerprints taken because he was about to take the Florida Bar Exam... Oh, dear!