Who works in this grocery store????

On our drive up to Harrisville we stopped to eat our lunch in the parking lot of the Busch's grocery store. (Yes, a fun time was had by all...)

We also took the opportunity to use the restrooms at the store before hitting the road. Their restrooms were a huge improvement compared to the rest stop we stopped at on Rt. 224, but we couldn't help but wonder...

Why do they make their employees go through this little door? Do they have a little three-quarter-scale bathroom in there? Very creepy....