Don't you just 'love' the scientist who say sugar has no effect on kids?
i've always wanted to lock them in a room with my kids on sugar (especially my middle one)
If you are going to be there anyway, any chance of bringing him home at night? this way he will not have as much chance for making bad choices at the end of the day (when he's tired anyway) .. Kids usually end up doing the creepy stories, dares etc at night