It's not every day you meet the head of Monsanto, which is why actor Mark Ruffalo knew he needed to take advantage of the opportunity and speak out for millions when he addressed the company's CEO, Hugh Grant.

Before a segment for the movie Spotlight with Mike Rezendez, Ruffalo was in the green room watching Grant on screen giving "slippery non-answer[s] to every question he was asked." 

Ruffalo wrote that he was disgusted watching the "guy who is responsible for so much misery and sickness throughout the world slime his way through his interview." Which is why when Grant came through the green room, he simply told him this:

"You are wrong. You are engaged in monopolizing food. You are poisoning people. You are killing small farms. You are killing bees. What you are doing is dead wrong."

Likely taken a bit aback, Grant responded: "Well, what I think we are doing is good." 

Of course he did. And then the exchange was over.