Who did the most grossest thing ever?

Determining the "grossest" thing ever is subjective and varies by personal standards. However, some notorious acts in history include extreme forms of body modification, gruesome medical experiments, or acts of cannibalism. For example, cases like that of Armin Meiwes, who infamously killed and ate a voluntary victim, are often cited as particularly shocking and disturbing. Ultimately, what is considered the grossest act can differ widely among individuals and cultures.