haha !
here are two fully tested methods of getting your gun into your house without having the wife raising a brow:
#1 - The Car Parts Method - Bring the gun home in a box marked "CAR PARTS".
i cannot take total credit for Method #1, BigBoreFan shipped a box of Gun Stuff to me in a box with a Chevy Mr Goodwrench label (or something like that) and my wife said "Those car parts you ordered arrived today" Cha-Ching ! Hats off to BBF for this one !!!!! (be sure to smear some grease on the box for that authentic look)
#2 - The Bonus Method - When you buy the gun, stop by the post office on the way home and ship it immediately off to NEF for a new Barrel or two. They will then ship it by UPS to your house. A month or so later, your first unexcited sounding words when the gun arrives; "Finally, that old gun is back from the factory !!!"
sg