In the Wilderness
Obviously, you can’t fight a tiger with a fishing rod. Sometimes, you’ll have to use whatever you have in your hands. For example, a shovel. In historic warfare, soldiers were armed with swords, spears, bows and some special weapons like the halberd, a Swiss battle ax-spear. But now, in modern warfare, you’ll need to be effective over long distances. Weapons such as a spear, bow or even a gun would be most suitable. But usually, spears and bows are better because they’re reusable though guns can also be a close-range melee weapon when it’s out of ammunition.
In School
There’s nothing to be scared of here. The ‘weapon’ in this situaton is not a gun or something similar. It’s simply anything you have in your hands. In dodgeball, the balls are your weapons. They are TRUE weapons because they can leave the target badly damaged. But when talking about weapons for daily defense (against bullies, psycho teachers, etc.), you need a recording device, aka your phone. That’s the only available weapon up until now. If a bully starts picking on you, you could secretly record them or even film them (this is a little harder).