Non-standard post

Take a look at this receipt I got from In-N-Out Burger (or as I like to call it, "the old in-out, in-out").

Okay, so you know that In-N-Out, as a corporation, serves God.  Or, at least, that's the image they maintain with their Bible verses on their cups, fry boxes, etc.  I ordered something I would normally get, and the cashier told me it would be $6.66.  I looked at Nikki with a silly and subtly astonished look on my face.  I thought we were going to just have a moment and then laugh about it later.

To my surprise, the young, fidgety cashier gasps and exclaims, "THE DEVIL!"  I burst my seams with laughter.  

In his defense, he was joking.  It was just really intense, and can only confirm that In-N-Out employees are familiar with the number of the beast.  How did the total come out to $6.66 when there aren't too many combinations of items at the restaurant and I got something I normally get?

Devil: 1

In-N-Out: 0