Reminds me of the Reddit thread where they said the perfect weapon in a zombie apocalypse is the light saber - never needs reloading, never goes dull, relatively quiet, can be used to amputate limbs with bites, cauterizes the zombie to minimize spread of the disease while dispatching them, can be used to start fires and cut through walls as required.
Someone said “you can’t use a fictional weapon in this!”
Answer: you’re using one fictional situation, I’m pulling from another.
There is a mod for the zombie shooter game Left 4 Dead that changes the katana for a lightsaber.