When Field & Stream magazine asked Vice President Joe Biden about the pluses and minuses of using a shotgun for self-defense vs. an AR-15, Biden said one of the pluses is that you can "just fire the shotgun through the door" to keep people away from your house.

Biden did not bother mentioning that shooting through an exterior door at someone outside your house would be illegal in many, if not all, states.

The law in most states--even those with Castle Doctrine laws in place--makes it clear that you are only allowed to use lethal force when you life is in demonstrable danger. The door Biden advised people to shoot through is protection against endangerment; shooting someone through an exterior door could result in manslaughter charges at the least. If the would-be criminals breach the door, it's a completely different story.

This is the latest example of questionable gun advice Biden has given in recent weeks.

It was just two weeks ago that Biden said he tells his wife to grab a shotgun and fire two shots off their balcony to scare possible intruders.

Firing a gun into the air within city limits is illegal in many, if not all, states as well.