Yeah, I want to echo this. The recent-ish rise in drop-bear attacks is also a bit of a pizza effect. It seems that the increase can be traced back to a bacteria that irritates the mouth of the drop bear, making them more prone to attacking humans and other large creatures. Recent results state that the bacterial strain was a mutant strain that originated in a Swedish zoo exhibit of drop bears that were on loan from the Australian government. When one of the mating pair was returned to Australia, the bacteria spread like wildfire (no pun intended) to the wild populations and captive ones. More can be found here:

https://www.youtube.com/watch?v=dQw4w9WgXcQ