Source of a rules myth?

[danreeves1973]

Got to call a real serious, high pressure, high stakes tournament this weekend.

Dixie 7-8 machine pitch allstars.

In all seriousness, it was fun, kids played hard and besides one coach acting like it was game 7 of the world series on out/safe calls, things went fine.

After my last game I was told by our district director that he had a protest lodged on a game at another 7-8 tournament in another town. The protesting coach claimed that a player should have been out because he slid into first base. In Dixie we do have the no head first slide rule so I asked if this was the situation and was told no, kid simply slid in at first base, feet first, legal slide, clearly safe, etc, etc. Protest was of course denied. The other coach was livid and insistent that it was a rule that you could not slide into first base. .

So..does anyone know where this myth came from? is there a rule set somewhere, maybe a form of softball or something, that says no sliding at first, or is this just something that has developed on its own accord over the years?