Here's some more JV nonsense! Budget Day, and Jeremy Vine is talking to the BBC's Ross Hawkins. He's just waiting for the Budget to begin and crosses to the Commons to catch the last few seconds of Prime Minister's Questions and hears the PM shouting. "So there we are. Fiesty performance there", says Jeremy, having heard all of five seconds of David Cameron. After PMQs the Speaker traditionally vacates his chair and the Deputy Speaker takes over for the Budget. It's happens every year, and has done so since the dawn of time. Caught Jeremy Vine by surprise though!!: "And we wait to see if the Speaker calls the chancellor. John Bercow's just popped out of his chair for some reason!! I wonder..Oh I see! The Deputy Speaker coming in Ross, is that right?". Yes, that's right Jeremy.
You have probably seen more budgets than I have, but I do know that the Deputy Speaker ALWAYS chairs budget speeches, and I am surprised that you did not.