Adrian Beltre forgets to stay in the batter's box, quickly (and hilariously) remembers

Rules are hard to follow -- especially new ones. But still, you're not supposed to break them.

MLB's pace of play rules have been put in place this season, and one of them says that a hitter must not leave the batter's box after taking a pitch. During Tuesday's Rangers-A's game, Adrian Beltre took a ball from the wonderfully-stirruped right-hander Jesse Hahn. Beltre, who's been playing in the Majors since 1998, momentarily forgot the new decree and then hilariously remembered:

We'd love to hear what Elvis Andrus thought about this one. 

Update: Here's what Elvis Andrus thought about this one: