How, you ask? By watching this absolutely terrifying Vine video of a giant ball of spiders basically exploding.
To be fair, these guys aren't actually spiders; they're Opiliones, another order of arachnids who are often confused with regular spiders. So if this video has sacre you shitless, you still technically have arachnophobia now. You're welcome!
The video was taken by a gent named Pablo, who, according to the first Spanish-to-English translator I found online, titled it "Super living public hair of Valle de Bravo."