You may be wondering, how did that poor little gummi bear fall into that vat of toxic waste? It's really not that complicated. It's a long, exhausting day at the toxic waste management facility. Bob wanted a snack. He popped some quarters in the vending machine in the break room. Fast forward an hour or so, and you have a 50 story tall, lazer beam shooting mutant gummi bear, hell bent on destroying mankind.
It may not be exactly what the Mayans had imagined, but it's an interesting way to go. You might be able to ride out the Mutant Gummi Bear Wars in your underground shelter. But what will you have left to live for? The post-apolcalyptic world will be a sad lonely place, devoid of laughter and gummi snacks.
Was the snack worth it Bob? Well was it??