I found this story on Futility Closet's blog here.
"Commandant Louis Joseph Lahure [a general from the Netherlands in the service of the First French Republic] has a singular distinction in military history — he defeated a navy on horseback."
Look how smug he looks. "Yeah. I did that."
"Occupying Holland in January 1795, the French continental army learned that the mighty Dutch navy had been frozen into the ice around Texel Island. So Lahure and 128 men simply rode up to it and demanded surrender. No shots were fired."
Of course, this may not be as impressive as it first sounds–the Dutch has very probably already been approached by surrender by this point and were instructed not to resist Napoleon's forces. So it's less of a 'defeat' and more of an 'interesting confrontation between two types of forces that don't usually come into contact.'