Who Are These People With No Shirt and No Shoes Who Get No Service?

I see the signs: “No Shirt, No Shoes, No Service!”  But I’ve never seen “them.”  I’ve never seen all the shirtless guys who are not wearing shoes yet are clamoring for service.  They must duck for cover whenever I approach.  But they can’t be too shy.  Apparently, they’re brazen enough to go waltzing into stores […]