
"That you can get water by c*****g open a cactus and drinking the liquid inside. Unless you are a botanist who can identify the one or two specific types of cactus that are safe, you're going to have a bad time. The fluid in most cacti is full of acids and alkaloids that will make you violently ill. You'll end up vomiting, which will make you lose way more water than you gained and speed up the dehydration process."
I hope the assholes who downvoted you get mugged, sodomized and shot by some Monkey-Poxed Haitian someday. They probably look like my avatar.
Yes but warms up to usable temps in your hand or mouth. (Alaskans are actually trained to always have a lighter and a knife).
My Jr High did survival training on a mini island in Alaska, I got "Best solo survivalist".
1. Air
2. Water
3. Shelter
4. Warmth/fire
5. Food
6. (I forget) maybe communication or tools?
7. Entertainment (very important to survival alone or with others)
Hard to tell if some of these are meant as Do's or Don'ts, but I can say, don't do deadly dangerous things for low value items. I've known a trained Coast Gaurd who drowned while trying to retrieve a fishing hook stuck on a bouy, while stupidly fishing off a beach in waders during a rainstorm.