It can also depend a lot on the way the boar is prepared. It's a common dish where I live and there a very few recipes that do not involve marinating the meat, which I assume is not very suitable for burgers.

As a Belgian, I can assure you no one in his/her right mind will ever soak fries in mayonnaise. Plus those french fries are actually Belgian (although we simply call them fries, or "one large, with ketchup, please".

You could beat him/her with the truth. It's an absolute defence.