The FAO will want to know that the safe can't be compromised easily. Make up a close fitting block under the cabinet when it's off the ground. Stops a prybar being used with a pivot to break it off the wall. Doesn't need to be a brick wall more 'the fabric of the structure'. Putting it inside a cupboard and making it difficult to get too is a good approach.
You can keep cartridges anywhere. In the cabinet takes up gun space. A locked cupboard is probably sensible. Get a slab at least to room temperature before going shooting. Warm dry carts work a lot better than cold damp ones!
You don't have to tell him where you keep your keys. I said to mine 'They are kept securely and no one else in the household knows where they are. what's more if I told you where then I'd change where I kept them.' Seemed happy with that!
The general idea is I think, to asses your attitude to security not to actually test your homes hardness to attack. Occasionally an FAO may 'swing on a door' or check the locks but that's probably more about show than really testing something.
