@deejay... what are your thoughts now you have lots of replies?
This may have been mentioned in the thread already, but if not.... If the meter is a smart meter and the cutout gets removed without authorisation the meter company will know straight away and they notify the DNO who is duty bound to investigate (phone call etc). Not sure if a fine is involved or if it's just a slap on the wrist, or even how seriously they take it, but it's good to be aware of.
Also, we all joke about the seal fairies, but there are some old cutouts that should never be pulled as they may crumble (I think these are the old bakerlite ones). Of course I would never pull a fuse, but if someone did they should be 100% sure they had switched off all loads (I.e the main switch) and would be wearing electricians gloves.