TV Crypto is always funny if you are a cryptographer. But this crypto conversation from the NCIS episode – Judgement Day was the best ever

McGee: I’ve tried letter substitution. I’ve tried frequency analysis, Affine shift ciphers.
Leon: Affine shift ciphers?
McGee: It’s kinda hard to explain. No offense.
Leon: You mean it’s hard to explain why you’d waste your time on an Affine shift without even knowing the multiplicative inverse?
McGee: Why I thought…
Leon: Have you tried a transposition cipher?
McGee: Not yet!
Leon: Visionary encryption?  [This was the best - perhaps he meant Vigenere?]
McGee: Well, I was going to.
Leon: So, you haven’t done anything. (hands McGee a toothpick) You call me when you have.

Enjoy!