Joe Biden’s wife Jill might not want to take his advice regarding using a double barrel shotgun for home protection. Doing so could land her in jail!

In a Facebook “chat” Tuesday, the vice president said that he had advised his wife, Jill, to fire a shotgun in the air from their Delaware home’s porch if she was concerned for her safety.

“I said, ‘Jill, if there’s ever a problem, just walk out on the balcony here, walk out and put that double-barrel shotgun and fire two blasts outside the house,’” Biden said.

“You don’t need an AR-15—it’s harder to aim,” he added, “it’s harder to use, and in fact you don’t need 30 rounds to protect yourself. Buy a shotgun! Buy a shotgun!”

However, Delaware law would likely make his suggestion illegal—unless the shots were fired in self-defense in a truly life-threatening situation.

A sergeant with the Wilmington, Del., police department explained to U.S. News that city residents are not allowed to fire guns on their property.

The sergeant, who preferred not to be identified, said that Wilmington residents are also not allowed to shoot trespassers. “On your property you can’t just shoot someone,” he said. “You have to really feel that your life is being threatened.”

Oops! Read the whole thing to find out what charges she’d be facing if she follows his advice.