Ok Ok .. I see I'm in danger of taking all the fun out of this for everyone with my ridiculous over-thought out 'sensible' plans...

I've taken everything you all said on board and decided the only way to continue this exchange is to burn the address list that goes with the cameras and let each participant guess the address of the person after them.. That should ensure Mass Panic continues for the foreseeable future.

We just may need to gather a few more chickens before we start..