As David Cameron prepares to move into No.10 Downing Street, a vastly more important British civil service post has yet to be filled. That, of course, is chief mouser to the cabinet office: the resident Downing Street cat.

Anecdotally, cats have been part of British governance since the time of Henry VIII. Unlike Kevin Rudd’s much-documented pets (check out this awww-worthy pic of Abby at the Million Paws Walk) or the various animal tenants of the White House, Downing Street’s cats do not belong to the incumbent prime minister but are on the Civil Service payroll as mousers.