That's been probably the most common defense of Berlin. And that's fine. Could be right. But IMO, Berlin's actions strike me as shady and I think he borrowed from Joplin. If he hadn't tried to cover it up by "forgetting" about Joplin's submission of A Real Drag to his publishing house, I'd have no problem with what he did. Everybody borrows, I don't care how creative you are. But it's just my opinion and it won't change.