If you take a registered California Assault Weapon (similar to the tooth fairy, only exists in the imagination of small children and Kali politicians) to a gunsmith for work, you cannot leave it with the gunsmith unless he or she holds a California Assault Weapons Permit. Otherwise you must remain with the firearm while it is being repaired. Shipping to the manufacturer must also go through a gunsmith with the California Assault Weapons Permit.
Also, you may not draw a handgun in a day care center.
Hey, I've been in a firefight before!
Well, I was in a fire.
Actually, I was fired from a fry-cook opportunity.