Not Very Closed-Minded, Part 37

I have been recently hired to work at a new store opening at my local shopping centre. The other new employees and I are all setting up the store — stocking shelves and setting up displays. We have yet to open and we have huge signs on display in our windows advertising the grand opening.

A guy walks up to one of the signs, reads the sign, moves along to next sign, reads that, and then opens the door.

Customer: “Hey, are you guys open?”

Supervisor: “No, we open next Thursday. It’s on the sign.”

Customer: “Oh, yeah, I read them, but I thought I’d come inside and see if you were open anyway.” *Leaves*

Supervisor: “Seriously?!”

Related:
Not Very Closed Minded, Part 36
Not Very Closed Minded, Part 35
Not Very Closed Minded, Part 34
Not Very Closed Minded, Part 33
Not Very Closed Minded, Part 32