Yes, that guy was a MORON.
But, FIVE screeners to a lane! That is just plain MORONIC.
A lane could EASILY be run with 3 screeners. One To watch the x-ray. One to watch the lane and One to wand.
It is wasting valuable resources to put a screener at the mouth of the machine to "Suggest/Remind" that people remove their Metal Objects and Laptops. There are PLENTY of signs for that and anyone too STUPID to read said signs deserves to be secondary harrassed.