Today's viral thing is a note posted on a Texas restaurant door. It's here. It contains bad language, so you'll have to choose to look at it. It's a going-out-of-business sign that says, in essence, you stupid rednecks have no appreciation of good food.
In somewhat saltier sentiments.
This site says "don't know if it's real, but here it is," and then people debate whether it's Photoshopped. Proof: it's behind glass! Paper isn't reflective! Yes, kids, remember: when trying to decide if something is Photoshopped, take advice from people who have never spent more than ten minutes with Photoshop.
Gawker seems to think it's real, and again: it's behind the glass, people! They point to the restaurant's Facebook page, where the owners posted an update this morning: "Don't believe all you see and hear folks!" That's not exactly a strong denial.
But. Let's take a look at the restaurant's location on Google Street View:
Let's turn around 180 degrees.
Does that match the reflection? Sort of. But the second view is on the other side of an interstate. Turn the first view around 180 degrees to see what you'd get if you stood by the restaurant door and turned around. I don't know; isn't conclusive one way or the other.
As for Photoshopping something so it looks like it's behind glass: