A patient, known only as 'Bubba,' presented with symptoms of sudden and unexplained botulism, despite being a well-known vegan.
Upon examination, Doctor Brown Cowboy discovered that Bubba had been consuming an unusual amount of vegan 'beefsteak' sauce, which was later revealed to be a key ingredient in a secret recipe for homemade vegan 'beefsteak' sauce.
Further investigation revealed that the sauce was actually a genetically engineered strain of Botulinum Toxin, designed to induce a temporary but severe case of botulism.
Doctor Brown Cowboy was able to administer an antidote and save Bubba's life, but not before Bubba's face had turned a lovely shade of purple.
As it turns out, Bubba had been experimenting with the recipe in an attempt to create the world's first vegan 'beefsteak.' We'll be keeping an eye on Bubba, as his taste buds are clearly more resilient than his constitution.
For more information, see Case 003: Doctor Brown Cowboy's Bizarre Beefsteak Botulism