You have to admit he has a point. Tim does not give a link to the news story he is quoting, but there is a short item on the subject here.
The Commons is infested with mice. Fair enough, old, Victorian, building, a thousand or two people wandering around, lots of cafeterias and dining rooms, lots of people using take away trays to eat at their desks and so on: sure, there will be mice around. It's even rumoured that the mice have become immune to poison and the pest control people doubt that they'll be able to eradicate them.
Now, given the accumulated human wisdom that is our inheritance as a civilization, what would be a rational thing to do? Why, for example, does damn near every farm in the country have a few cats sunning themselves on the hay bales (and those that don't usually have a couple of terriers scurrying around the yards)? Yes, well done, we'll control the mice by bringing in a predator or two.
Can we do this in the Commons?The work appears to have forced the mice out into the open. Requests for a House of Commons cat to do its traditional job of catching vermin have been rejected by the "authorities" on health and safety grounds.