Wives
I think most wives are aware of our buying habits. We all just try to stay out of the "spotlight", otherwise our wives will feel entitled to purchase something big.
This weekend my son came home from college. He spotted a newly acquired 3913 LadySmith in my office. He asked if it was new. I replied I had had it for "awhile" (hours). He knew it did not look like my other 3rd generation guns, and insisted "No Dad, this is new". I was thinking on my feet. "Oh yes, I bought that for your Mother. You see, it is a LadySmith." My wife overheard the conversation, and asked how much it was worth. After hearing my reply, she said "good, I need to know because I am going to sell my gun!" Fortunatelty, she was kidding (I think).
Several years ago, I kept some old gun cases in the truck. That way, if I bought another gun I could put it in an old case and bring it into the house "under the radar." One day she asked why I was bringing my new guns into the house in the old cases. "Don't you understand I know what you are doing?"
Yes, I think most of them know. I think they realize we could have more destructive addictions.