I disagree with my boss regularity. Conversation example:
Me: "You fucking prick that agent you hired in Mexico is a sack of shit"
My Boss: "Whoa whoa whoa hang on partner you weren't listening to me about that"
Me: "Whatever get your head out of your ass"
Of course my boss is my brother in law so I have less issues about disagreeing
Another example:
Me: "What the fuck you bought coors light? How can I drink that shit?"
My Boss: "Fuck you prick drink it"
etc