What about a Saltdean Sizzler challenge? Never had one but it's looks pretty mean..
http://www.theargus.co.uk/news/10316923.Saltdean_sizzler_could_be_the_world_s_spiciest_pizza/
Not sure what the forfeit should be though (assuming there are survivors).
Good. The boxing thing is definitely out as I have now lost use of my left knee but taste buds still hanging in there. Where/what are we thinking for this chaps?