I spent 8 hours walking round London yesterday. I wasn't there specifically for the protest though we did walk with it a fair amount. I was there for this scout thing where you have to go to all the Monopoly places and take photos of your team there. It was pretty awesome except the awful photos of me which are now on facebook :S !!!
Anyway whilst 8 hours walking pretty fast burns a lot of calories I don't think it justifies eating 2000...
bowl of chips-400
Then I came home
1/2 a cake-945
pain au raisin-375