The mystery of the disappearing tools

My son Duncan is having a friend stay over tonight. Before he comes my wife (Karen) asked me to change the taps in the boys bathroom (which they keep breaking) Karen says the problem is the taps and doesn’t like it when I suggest the problem is the heavy handed boys.

Anyway I digress: I went and bought new taps came back and went to my shed looking for tools. I couldn’t find what I was looking for and asked who had been using my tools. Karen’s response “no one uses them except you” I went looking for the tools I required. Finding various tools in various drawers and cupboards around the house. Including what I was looking for.

I have now changed the taps and returned all the tools to the shed. Let’s wait and see how many make it back to the house without anybody using them but me?