[ttronicm]

This is such an elegant and repayable system that I hope it becomes SOP for customer-facing service workers everywhere.

[Noos]

I don't think you have considered this reply.

Imagine getting a code yellow from a line cashier while doing your groceries, because she doesn't like the way you look. So she calls her manager and he has to ring you up, while everyone else is looking at you with daggers in their eyes. She can't say to you WHY she called them, because code yellow means "you look creepy." But hey, you wait their five minutes for him to finish the order while she takes a smoke break.

Any time someone describes something as elegant, they usually are wrong. Real life is too messy for elegant solutions.

[aptwebapps]

Under this system the manager would only have to take over with a yellow if the cashier specifically requested it.

> But hey, you wait their five minutes for him to finish the order while she takes a smoke break.

...

> Real life is too messy for elegant solutions.

Real life is too messy to expect any system to map perfectly to all situations. To do so is to let the perfect be the enemy of the good.