London | Late last week, Australia's top ad man, Bill Muirhead, dropped a bombshell on the advertising world by announcing he was leaving the industry after half a century under the Saatchi banner. But right now, he has another departure on his mind.

The London-based Muirhead was supposed to be heading to Australia on Sunday to meet his first grandchild, but his flight was cancelled – and there's apparently not a plane seat to be had this side of the new year.