For either the Flu or Food poisoning use charcoal tablets
I can see how the charcoal would help for food poisoning...act as an antacid? But the flu? That is pretty amazing if it really works.
Grouse: have you shot a flintlock from inside of a blind before? I am also a flintlock shooter, but have never hunted from inside a blind with a flintlock. Any fire hazard issues? Thanks.