I get why they do occasional video checks and prosecute for even small amounts. Everyone sees that it would be so simple to walk out with something there. When it makes the news that they are checking and prosecuting it will make most people think twice about walking out with something no matter how small and inexpensive. It's called prevention and it is money well spent.
I have a hard time believing that he forgot to scan one of his two items. I could see someone attempting to scan one and not realizing that it didn't scan, but you should recognize that the price is off by over $5.
I'm sure glad I didn't do anything stupid in college.