In 1805 -- and despite his ridiculous weapon -- Nelson was incapacitated by a bullet that entered through his shoulder and passed through his spine. He died several hours later, and his fancy gun-sword was relinquished to Sir Thomas Hardy, the captain of Nelson's flagship, the HMS Victory. History does not record whether or not he was ever able to behead someone and then shoot the severed head between the eyes as it flew through the air, but let's assume he was.
Caters via lebanontimes.com
And that person left the mortal realm knowing they had died the most awesome death possible.
The gunblade was displayed it at the National Maritime Museum in London before it was sold at auction for a cool 11,000 pounds. And yes, before some smartass points it out, the sword-pistols weren't very effective in battle. They ended up as a novelty brandished by officers of high rank, useful only when Nelson couldn't be bothered to manually remove the fools who had so peskily found themselves lodged to his blade. But who cares? It's a SWORD that is also a GUN. The moment you tell somebody you own it, you've won the only battle that matters.