I don't know about you, but I like happy people.

Happy people are great to be around. They generally don't complain -- I hate complainers -- and they're fun to work with. People that laugh and kid and smile. I can work with people like that.

I'm just glad I'm not president of the United States, because I couldn't work with people like North Korea's President Kim Jong Il.

Is this guy not the most serious man on the planet? Have you ever -- ever -- seen this dude smile? Even chuckle? I'll settle for a smirk? I'll save you the trouble. No, not ever.

What's more, he's apparently made this sourpuss policy tumble tragically from the top down. Not trickle down, but trickle "dour."

And, North Korean soldiers? I know they have to goose-step and all that, but would it kill any of them to show anything bordering on pleasant? I have never, ever seen a more serious, miserable, somber group of emotionally constipated guys in all my life. For all I know, they really "are" constipated.

Don't you feel like just screaming into a megaphone: "Everyone, lighten up!"

It's hard to reason with people like that. For god's sake, even Saddam smiles.

I'm not asking you to be Robin Williams. Heck, I'll settle for Andy Williams.

A smile, a wink, even a dirty joke? Anything!

But no. All stiff, all the time.

I suspect that people like that, don't much like this world. So the way I see it, they'd probably have no problem blowing up this world.

It's not in their words, it's in their faces. And that's what worries me.

Watch Neil Cavuto's Common Sense weekdays at 4 p.m. ET on Your World w/Cavuto. 

Neil Cavuto serves as senior vice president, anchor and managing editor for both FOX News Channel (FNC) and FOX Business Network (FBN). He is anchor of FNC's Your World with Cavuto - the number one rated cable news program for the 4 p.m. timeslot - as well as the FNC Saturday show Cavuto on Business. He also hosts Cavuto on FBN weeknights at 8 p.m. In addition to anchoring daily programs and breaking news specials on FNC and FBN, Cavuto oversees business news content for both networks and FNC's weekend business shows, including Bulls & Bears, Forbes on Fox, and Cashin' In. Click here for more on Neil Cavuto.