Dallas Braden, who yelled at Alex Rodriguez for jogging across the pitchers mound to return to first base after a foul ball, seems to be a bit of the finicky sort:

"The long and short of it is it's pretty much baseball etiquette. He should probably take a note from his captain over there," Braden said, referring to Yankees leader Derek Jeter, "because you don't run across the pitcher's mound in between an inning or during the game. I was just dumbfounded that he would let that slip his mind."

"I was just trying to convey to him that I was still out there, that ball's in my hand and that's my pitcher's mound. If he wants to run across the pitcher's mound, tell him to go do laps in the bullpen," he said. ...

Upon returning to the dugout, Braden remained very cross:

Braden threw his glove against a wall in the Oakland dugout and kicked a stack of cups.

In short, Braden doesn't like people in his work space. It makes him very, very angry. Sort of like this guy:

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For his part, A-Rod wasn't that all concerned:

"He just told me to get off his mound," Rodriguez said. "I was a little surprised. I've never quite heard that, especially from a guy that has a handful of wins in his career. I've never even heard of that in my career and I still don't know. I thought it was pretty funny, actually."

Braden did not find it funny at all:

"The guy was tasting himself too long to apologize," he said. "No, he didn't apologize. And it's a shame. I have a lot of respect for that guy, everything he's done in the game. It's just disappointing when you see the other side of things."

Dallas Braden would be that lady in cube land who constantly complains to managers about coworkers talking too loud or hanging inappropriate posters on their walls.