Nakohe - the bow sneak that I am about to share with you has never failed. Have the bow delivered to a friend, preferably one your wife does not know well. Have this friend call your home at a time when your wife will be able to answer the phone. Friend asks if you are home and will be there for a few minutes. She says yes. He says rather cryptically, I will be right over. When he arrives she will be curious and will meet him at the door. He has something wrapped in a blanket. He hands it to you and says that he needs you to keep it for him for awhile - family trouble, IRS trouble, burglars in the neighborhood... but he would feel better if you kept it safe for him. He leaves.
You and the wife open the package and there it is. If your name is on the bow, you are cooked, but if not, your in. FYI, I still have a "good friend's" Belgian Browning Sweet 16 that has been safe at my place for 8 years.