Sometimes I guess it's necessary to point out the obvious. Is it because society is getting more and more stupid? Probably yes. But that's no reason for the rest of us to be sarcastic about it. Take a look at these scenarios and decide for yourself it the sign was necessary.
Have you ever been in an exam and completely desperate for any idea on how to answer a question? I know I have and I always completely lost my nerves. But not these people, these guys just accepted their fate and tried to make the best out of it by responding in the funniest ways you can imagine.
Wal Mart is a magical place. Not magical in a good way but you may see a couple of trolls and orks while you're there. I wouldn't say that the clichés about Americans are true but if you want to prove they're false, never go to Wal Mart. Let me know if you've ever seen one of those people.