true... I agree with her advice, after having the same injury and reinjuring it many more times only because it was weak, The lace-up boot thingy is definately worth the money, and if you at least stay off it for now (like you are told) *points shamefull finger* you should be able to at least hold your foot stiff and hobble your way around the convention.
so to recap...
stiff + strap on + convention = how can you go wrong with that combination?