Hello again. Today I took my wife to a large department store so that she could browse around for an hour or two. I positioned myself in the cafe which has a good view of the door so that I could keep a check against her leaving the store. I gave her a small amount of money as I like to keep going the fiction that she has her own money and is independent. She engaged in conversation with a security officer as we left the store and I overheard the word"knife". We arrived home, and as she took her coat off I glanced into her handbag and was concerned that she had bought an 8 inch carving knife. She does no cooking whatsoever and when I challenged her about it she became evasive. At the first opportunity I will secretly confiscate this knife and confer with her GP.