Barry Zito.

Jamarcus Russell. When it comes to being booed, Joe Lacob can’t carry Russell’s jock.

Signing him for such huge cash was a colossal blunder, a desperation PR move. It would have been only a slightly worse move had they signed Brad Pitt to play first base.

The villains, for the most part, are unfairly attacked. The real villain is almost always higher up. Russell was a slacker but the Raiders didn’t do their homework, and Al Davis refused to cop to his atrocious judgment. The 49ers overrated Smith and gave him hilariously bad coaching. The Warriors simply blew it — twice — on Dunleavy.

The Giants overpaid for Huff after winning the 2010 World Series and continued to assume he would eventually play up to his salary level. After the fact, they made Huff the scapegoat for 2011, the poster boy for overcelebrating the World Series win.

And yet, was it the underperforming Huff blocking the development of Brandon Belt? Does Huff make out the lineup card?

Most of us assume the big money makes the villains impervious to the slings and arrows. Zito and Smith seem to be well-adjusted and happy, right? Well, those two could perform a great service by co-authoring a book on how to be a bum (in the eyes of the fans) and not go nuts.

Huff could read it and benefit. So could the rest of us.

(Google “foul ball couple,” or search Youtube for “—hole couple taunts kid with foul ball.”)

At a Rangers game, a man and woman grab a ball tossed into the stands by a player. The couple celebrate while a little boy next to them bursts into tears.

I recently launched a campaign to encourage adult foulball snaggers to keep their souvenirs and not yield to demands and threats of nearby fans by giving the ball to a random kid.

Check out the video. Hustling couple snags cool souvenir, little kid gets life lesson.

Remember: There’s no crying in baseball.