*sob* ... This reminded me of something I read in RTD's "The Writer's Tale", about how Phil Collinson was so upset over Harriet's demise that he insisted to anyone who would listen that she'd actually dropped through a trap door in the floor, before the Daleks could shoot. I agree, a trap door, that works for me ;).
Author's Response: Awww, if only! She was absolutely brilliant. One of my favorite moments was Jack's salute to her - absolutely perfect.