BlueFoot,
I will put it this way, and this happened, because I was BU in this game.
Low pitch comes in towards batter, she arches body, ball (according to PU)
hits shoe string, blue calls "dead ball" and awards the batter first base.
Suprisingly - no one, not one person argued the call.
I realize this is going a litttttle far, but my first post was to attempt to
let poster know that on force out if any part of the body of the defender
touches the base while the ball is his/her possession, then you would
have an out.