Who do you think were the first humans ever to get drunk or high?

I read somewhere that coffee was only inadvertently discovered after a sheperd witnessed his goats jumping all over the place after chewing on some beans from a certain plant. And this ultimately lead to people lining up in Starbucks, minus the jumping of course.

I’m wondering which human ends up drunk after accidentally discovering the ancient ancestors of beer. Please, answer as many funny one’s you could make. The drunker the answer is the better! : )