Designing markers that also deter, slow down, direct, and unbalance an intruder while giving you vital information is a useful skill to have.
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HEALTH
Any animal can pose the threat of a bite, especially in a survival situation, and humans
One of the biggest causes of death in a post-SHTF situation is going to be disease
When SHTF, you have absolutely no way of knowing when you will get another chance to
Not having enough meds is perhaps the biggest health issue known to chronic patients who are
