7. Bath Salts
If you have ever seen someone that happened to be high on bath salts, you likely met someone who is absolutely insane. The bath salts are obviously made to use in the bathtub to help with different issues like sinus trouble or even muscle aches. If they are snorted, smoked, or made into a liquid and injected, they could clearly kill a person or make them crazy. Some believe this might be the most likely thing that could cause a real zombie apocalypse.
The reason comes from a now-infamous cannibal attack that happened in Miami back in 2012. A naked Rudy Eugene horrifically attacked a 66-year-old homeless man named Ronald Poppo. He ate the man’s face off! Somehow, Poppo survived the encounter and is now blind. This cannibalistic attack by a man high on bath salts could clearly become much bigger and result in people becoming crazed zombie-like cannibals.