The BBBC had a blanket ban on the use of "stimulants other than water". That wasn't the case elsewhere - as a US cornerman Dundee would have been accustomed to use smelling salts as a matter of course when a fighter returned to his corner after being floored or dazed. As the Mildenberger example illustrates, this wasn't a rule where a single breach was considered grounds for disqualification. It's doubtful Ali's corner even knew about it. Another example is Jose Napoles' manager, who was furious when his smelling salts were taken away from him and said he would never have taken the fight if he'd known they weren't allowed.