We understand the role of ball boys/girls when it comes to protecting bullpens from foul balls, and occasionally they make highlight plays. But they sure do screw up a bunch, and today a ball girl in Baltimore committed the ultimate sin by ignoring the third base umpire's fair signal and fielding a live baseball as Blue Jays runners headed toward the plate.

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It's debatable that Adam Lind would have scored on the play—and he ended up reaching the plate on a grounder later anyway—but, yeesh, train your employees a bit better, O's. (The cynic would say the team trained its employee very, very well.)