I apologize, but I don't have enough information to accurately answer your question about John Craven sounding like 'gwabadee' when he talks. It's possible that the specific pronunciation you mentioned is influenced by a dialect, accent, or speech pattern particular to John Craven or a regional variation. Without more context or details, it's difficult to provide a specific explanation. If you can provide additional information or clarify your question, I'll do my best to assist you further.