Reply #72: In your example, you make the unsafe assumption

[ManiacJoe]

that someone granted the access. If the shooter broke in and stole the gun, the owners are not responsible since they did not grant access. If one of the owners did grant access, he is responsible for any illegality of the transfer while the shooter is responsible for the shooting (assuming no foreknowledge by the bad owner).

With the right to firearms ownership comes responsibility. If you cannot handle the responsibility due to your lifestyle or due to the company you keep, then you need to either give up the ownership or change your habits/company to account for your new responsibility.