Runner sliding into the batter

[ultimate7]

Minor glitch where the batter stays in the batters box on a steal and then can get run over or slid over, picture is a little difficult to make out because I stupidly made the uniforms the same color as the grass.

[ultimate7]

Actually on top of batter

[what_foul_pole]

why can't this happen in real baseball?  Batters often miss this sign