Can the runner really do this?

[GarthB]

Why worry about this runner? Why run after him, that's what the offense wants so R3 can score. Ignore him.

What can happen that's any worse then if he stayed at first? Batter hits grounder to infield...easiest double play ever and R3 is still at third. Fly ball? Let's see R1 tag up!

Base hit? Well R3 would have scored anywayl, so that's nothing new, but if you can't get R1 out you shouldn't be playing the game.