There is a hand sink behind this counter

Again. How far away?

I still think,How much does it cost? As opposed to your sleeping at nite? if a $14 GFI is gonna cost you the job....
You don't need that customer.

But I do understand the conversation (it is a good one). I feel the entire 'Space' is a commercial kitchen.
Based on the fast food places I have seen.

Most of them--cook hands the food to counter help- counter help has all the trays of onions,pickles, etc. right there. that is food prep. Non-residential kitchen.