The Prince of Wales was asked if he could be kidnapped and held for ransom as he met Poppy Appeal volunteers and celebrity supporters.
Charles greeted those working to raise money on board the London Poppy Day red bus at Clarence House as part of the campaign to raise £1 million in a single day from donations across the capital.
TV presenter and Poppy Day ambassador Ben Shephard said: "We thought we could try and drive off with him on the bus and launch a ransom to raise more money. But he thought we wouldn't get very far."
More top news
Members of the RMT union will walk out in a row over the role of conductors, causing fresh misery for hundreds of thousands of passengers.
The five year long jail sentence of a London mother held in an Iranian jail has been upheld.
Barnet police are investigating four separate anti-semitic offences in the last two days