"The hands are part of the bat"... is generally recognized as the number one, most prevelent "rules myth" circulated amongst players, coaches and fans.
"Rule myths" are those common misconceptions that have been around for years, that many fans "just know are right", but really have no basis in the actual rules. These are so common that many years ago someone came up with a list of the 40 top baseball rule myths. A softball umpire got ahold of the list and revised it to cover softball rules.
While many of the baseball myths are things we've heard from Little League on, many of the softball myths arise from people trying to apply baseball rules to the game of softball.
While we're on the topic of rules and rule myths, here are the 40 most common softball myths, along with explanations for each of the calls.
I'll bet that there's more than a couple in there that you were just absolutely sure was true!
Softball Rule Myths