Why are we trashing Liberterians? As a party and movement they fight for Americans to have all rights that don't directly harm others. I am not a Liberterian but I respect them and agree with a lot of what they say. I am sympathetic to their arguments on drug legalization. If someone finds usage of what are now controlled substances to be "wrongheaded" then they shouldn't be used.
While we're making the world safe for the liberty of the drunk or stoned superman, let's prohibit all laws banning the gratuituous discharge of firearms in buildings and busy city streets. Some of us are pretty good shots. Why, I know men who could drill a pigeon or rat at 500 yards as it walked between the feet of a person standing on a sidewalk. Probably wouldn't even touch the person, either.
Heck, let's get the sharpshooter liquored-up or stoned first just to show how truly impressive his aim and control are.
Shazzam! Isn't Liberdopia a fun place to live? Until you actually kill or injure someone, you're safely "in the zone" of unalienable rights.
And if you fail? Well, that's why taxpayers exist: to clean up and pay for your messes after you.