Although this does desrve a sarcastic reply....
1. No
2.
Pilots to remain at controls
50 (1) The commander of a flying machine or glider registered in the United Kingdom shall
cause one pilot to remain at the controls at all times while it is in flight.
(2) If the flying machine or glider is required by or under this Order to carry two pilots, the
commander shall cause both pilots to remain at the controls during take-off and
landing.
(3) If the flying machine or glider carries two or more pilots (whether or not it is required
to do so) and is engaged on a flight for the purpose of the public transport of
passengers, the commander shall remain at the controls during take-off and landing.
(4) Each pilot at the controls shall be secured in his seat by either a safety belt with or
without one diagonal shoulder strap, or a safety harness except that during take-off
and landing a safety harness shall be worn if it is required by article 19 and Schedule
4 to be provided.
(5) An operator shall not permit a helicopter rotor to be turned under power for the
purpose of making a flight unless there is a person at the controls entitled in
accordance with article 26 of this Order to act as pilot-in-command of the helicopter.
So if half way through the check you fail, you are not qualified to operate as PiC