So I looked a bit further into this "Health and Safety Myth"... just how much time did Alex Naylor spend in a lifejacket?
Example of the full-blown myth:
In Liverpool a shop keeper has been ordered to remove a number of St. George's flags for fear they distract car drivers or, even worse, fall off! The Trafalgar celebrations in London struck an odd note when the actor playing Nelson triumphantly coming up the Thames in full dress uniform of a 19th century Admiral was instructed to wear a life jacket over the top - thus spoiling the whole effect.
From WorkSmart UK:
Half-truth
During the Battle of Trafalgar commemoration the actor playing Nelson had to wear a life jacket over his costume.
Truth
During an event on the Thames to mark the bicentenary of the Battle of Trafalgar an actor was dressed as Nelson. To get to the event he was transported using an RNLI lifeboat. This was a modern lifeboat and the RNLI asked him to wear a lifejacket during the trip. Given that he was in an RNLI lifeboat, and not HMS Victory, at the time it is unlikely that the lifejacket would have looked out of place.
Well, it did, just a smidge.
http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2004/09/30/nelson30.xml&sSheet=/portal/2004/09/30/ixportal.html