Retreating from home

[BretMan]

Originally Posted by RKBUmp

At every other base, the runner through some dumb act can put themselves back in jeapordy of being put out.

The difference between home and every other base is that after touching the first three, the runner's status is still that of "a runner"- from a definitional rules standpoint- and she is still liable to be put out.

Once a runner crosses the last one, she is no longer "a runner" (pick your term- an "offensive player", an "offensive teammate" or "a person authorized to be on the field of play") and can no longer be put out (assuming no valid appeal is possible).