HA !
That’s a photoshop, right?
Not sure, it was sent to me. But either way, we need more signs like it! 
Yeah as a college professor in computer graphics I feel fairly confident in saying yeah it’s totally a photoshop… Still kinda funny though.
Well, I wouldn’t really be surprised if this wasn’t photoshopped. I love funny billboard signs.
Reminds me of this ad too:
Hint: What operating system are you running on your computer?
Hahahahahhah…Now that’s a warning sign