In general, baseball players tend to be smarter than their counterparts in other major sports.
Maybe it's that even the best players spend at least a couple years maturing in the minors before they hit the big show.
Maybe it's because they aren't as involved with the so-called glamour of pop culture like basketball stars, or because they don't get hit in the head as much as football players.
But, of course, these are still professional athletes, so most of them aren't exactly rocket scientists.
Here's a look at the five stupidest things baseball players did in 2009.
For Milton Bradley, June 12 was a day that will live in infamy.
By the eighth inning, he had already missed two questionable plays and made a base-running blunder as the Twins took a 5-3 lead over the Cubs.
With runners at the corners and one out, Joe Mauer hit a lazy fly ball to right field. Bradley moved over and made the easy catch.
Nick Punto confidently jogged home from third on the sacrifice fly. But Brendan Harris managed to get from first all the way to third. How did that happen?
You see, Bradley lost track of how many outs there were and thought he had made the inning-ending catch. So instead of whipping the ball in to the cutoff man, he paused to soak in the moment, then tossed it into the bleachers—all while the game was still live.
"Do we need to go over math?" manager Lou Piniella asked, "One...two...three...I don’t know what else to say. I’m sure he’s somewhat embarrassed by it.”
"I wasn't embarrassed," said Bradley.
Words can't tell the whole story. For full effect, watch the video:
Boston fans will be forever haunted for the stunt Pedro Martinez pulled in Game Seven of the 2003 ALCS.
The Red Sox had achieved a three-run lead and were just six outs away from the World Series when Martinez gave up a pair of hits to open the eighth.
Martinez convinced manager Grady Little that he had enough gas left to get out of the inning. Two batters later, the game was tied. The Red Sox would go on to lose in extra innings.
Fast-forward six years to October 29: Game Two of the World Series. Martinez was locked in a pitcher's duel with A.J. Burnett, down 2-1 after six innings.
At that point, Charlie Manuel reportedly asked Martinez if he was okay to pitch the seventh.
Either he had completely forgotten about the most memorable night of his career or he was experiencing the classic definition of insanity (repeating an action and expecting a different result), because he answered "yes."
Martinez gave up two quick hits before being removed from the game.
With the score tied in the ninth inning of World Series Game Four, Johnny Damon roped a two-out single off of Brad Lidge in a nine-pitch at-bat.
Mark Teixeira stepped to the plate and Damon took off. He reached second base easily.
Then he kept going.
The Phillies had put the shift on for Teixeira, a powerful lefty with a pull tendency. Third baseman Pedro Feliz essentially moved over to shortstop while Jimmy Rollins took second base and Chase Utley retreated to shallow right field.
No one was manning third base.
It's not clear whose fault it really was, but I've made Feliz the scapegoat because covering third base is, you know, his job.
On May 7, Manny was given a 50-day suspension after testing positive for Human Chorionic Gonadotropin, a substance banned in Major League Baseball for its use in counteracting the side effects of steroids.
We heard quite a few times that hCG is a women's fertility drug. But what exactly is it?
A quick trip to WebMD.com proved incredibly enlightening.
In addition to being available in its artificial medicinal form, hCG is produced naturally by placentas. In this case, the article said, hCG "helps to maintain your pregnancy," and the expected levels of the substance in a woman's body are determined by menstruation.
Of course, there's one other thing that can produce hCG: a tumor.
Sound like something you want to put in your body?
Add to that the incredible ease with which hCG can be tested and it doesn't take a triple-digit IQ to think this might have been a bad idea.
On September 20, touted Giants first-base prospect Angel Villalona was arrested as a suspect in the murder of Mario Felix de Jesus Velete in the Dominican Republic.
He reportedly shot the man after a bar fight.
The Giants had been scouting Villanova since he was 13. They gave him a $2.1-million signing bonus just after his 16th birthday.
His visa has been revoked by the United States Government as he awaits his trial. I'm not one to go against the principle of "innocent until proven guilty," but seeing as Villalona actually turned himself in, I don't think he'll be playing baseball anytime soon.
A multiple-decades-long prison sentence could have a negative impact on his MLB career.