OK well i will agree to disagree I don't think leaving live mice regardless of size overnight is intelligent but I can understand why you would say it is o.k. Im just saying this to be sure that people who are new to ball-pythons are better off safe than sorry.
I apologize if I seemed rude but like I said, safer than sorry, its better to teach good habits right from the start than introduce bad ones(not that feeding live is a bad habit, I just don't agree with it, but no argument needed, my snake is not fussy and if he was Im sure I would need live eventually)