What is a hired gun?  It's a musician that has the ability to read charts fast, fit in like a missing piece of a jigsaw puzzle and be ready to tour at a moment's notice.  Sounds like a great way to earn a living right?  Not all of the musicians  interviewed would agree with you.  As a matter of fact, several members of Billy Joe's band referred to him as 'heartless'.  Most attribute this attitude as an aftermath of his former manager stealing 90 million dollars and vanishing into thin air.  That kind of betrayal would leave a bad taste in anyone's mouth.