Ard, you really should try taking a bit more water with what ever it is you are rendering yourself safe on.
A wee bit of history for you:
"In June 1898 the Second Convention of Beijing presented Britain with a 99 year lease for the New Territories, beginning 1 July 1898 and ending 1 July 1997."
Being extremely good tennants Ard, when the lease expired we threw a terrific party and left. Not a dry eye in the house, ask Chris Patton.
Unlike Hong Kong, Gibraltar, the Falklands and the North of Ireland are not held on leases.