Mr Boddy switches off the lights.......

[xoxoxoBruce]

Mr Boddy switches off the lights....... when the lights are restored, you're gone. But the door is still locked....how did you escape?
Creative home Engineering knows. You turn a candle stick, or press a book and a secret passageway opens....... just like in the movies.
How cool would that be, to have a secret shortcut or a hidden room? Not only could you hide valuables, you've got somewhere to throw all the crap when the Parson is ringing the bell.
It could be a safe room, made safer by being hidden completely. Or a place to set up the monitors for all the wireless TV cameras you've placed in your neighbors bedrooms and bathrooms.
It would also help to bolster your reputation as the neighborhood weirdo, should they find out you have hidden passages.