If you are fighting to prevent being replaced in the lineup by an up-and-comer still recovering from a wrist injury, it's a good idea to demonstrate in clear terms what makes you the superior player. The best way to do that, as Julio Lugo correctly decided, is to race a small child in front of everyone. Beat him soundly and show you are not one to be trifled with.
But, much like a straightforward groundball, Lugo bobbles this opportunity as well. It appears he selected his son to race him; a huge miscalculation on his part. Little Julio Jr. has seen more than anyone how terrible his father is at shortstop. He's only three, but this kid understands he's got a rep to protect someday. By beating or even keeping pace with his dad he virtually ensures Jed Lowrie is in the lineup as the starter, thus preventing Julio Sr. from sullying his good name.
This is either the act of a very very mature three year old or a three year old being represented by Scott Boras.