People tend to check in during these times:
Between the old people falling asleep behind their carts, and the morons pushing their carts while starring off into space, this is the frogger of supermarkets.
So what's the reason why they don't work in the store?
The friendliness employees I've ever encountered at a Stop & Shop :)
What can you say, it's a stop & shop. Kids who work there are very polite and friendly.