Hey! I almost forgot... I have my handy dandy Rule PDF..
Your idea would certainly make a new interesting Stat category: Sacrifice Interference..
A little easier than running down the base line, just lay a good hit on someone to advance the runners!
I dont know if you are an ASA Parent nor am i familiar with the various other lower level league rules if you arent ASA.. but for your edification.. the ASA Rule:
<snipped for brevity>
The Batter-Runner is out:E. When the batter-runner runs outside the three-foot lane and, in the umpire’s
judgment, interferes with the fielder taking the throw at first base;.....
F. When the batter-runner interferes with:
1. a fielder attempting to field a batted ball,
2. a fielder attempting to throw the ball,
3. a thrown ball while out of the batter’s box,
4. by making contact with a fair batted ball before reaching first base,
5. by discarding their bat in a manner that prevents the defense from
making a play on the ball,
6. (Fast Pitch) a dropped third strike.
NOTE: If this interference is an attempt to prevent a double play, the runner
closest to home plate shall be called out.
G. When the batter-runner interferes with a play at home plate in an attempt to
prevent an out at home plate.
EFFECT: The runner is also out.
H. When the batter-runner steps back toward home plate to avoid or delay a
tag by a fielder.
EFFECT - Section 2 D-H: The ball is dead
and runner(s) must return to the
last base legally touched at the time of the interference.