What would happen if Beavis and Butt-Head visited a gun range and used a gun there?

There are a lot of gun ranges where people can come inside and rent a gun to use and just buy bullets for it, that would be pretty funny seeing them using a gun and basically shooting everything including the targets or trying to use a gun and dropping it causing it to break and not having the money to fix it. Or accidentally shooting themselves or someone else or nearly doing it and getting into trouble or making the news and being on TV for being so stupid,, those places don't require background checks and anyone can enter and use a weapon.