Why would you tell somebody that they completely agree with you when they just said that they disagreed? That's so rude. You say "That's cowboy programmer bulls

Why would you tell somebody that they completely agree with you when they just said that they disagreed? That's so rude. You say "That's cowboy programmer bullshit", he says "I completely disagree." Do you really think there's a chance he secretly agrees that his view is "cowboy programmer bullshit"?