Speaking about David Cameron’s reshuffle outside Number 10 this morning, Mr Boulton was talking about how many people had lost their jobs when the rogue fly headed for his mouth.
After three seconds of gurgling and looking a bit fretful, Mr Boulton regained his composure and carried on.
Presenter Dermot Murnaghan asked if he’d like to take a break, but Mr Boulton assured him he was fine.
“I’ve swallowed a fly – but I’ve recovered!” he replied merrily, before continuing with his report.
He later took to Twitter to joke about the incident, poking fun at the 50p charge for public toilets in the Westminster area.
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