Detective Marcus Burnett: I'mma penetrate this man's soul wit my heart.
Detective Mike Lowrey: What?
Marcus Burnett: Let that be a lesson to yo witch ass.
Detective Marcus Burnett: We're not just black, we're cops too! We'll pull ourselves over later.
Captain Howard: Look at this mess! It’s carnage!
Mike: I didn’t do all this.
Captain Howard: You didn’t shoot anybody?
Mike: Oh, come on, Captain. You know I shot some people.
Detective Mike Lowrey: I've never trusted anybody but you. I'm asking you, man. Bad Boys, one last time?
Detective Marcus Burnett: One last time.
Detective Marcus Burnett: Do you want your legacy to be muscle shirts and body counts?
Marcus Burnett: Look, all our lives, we've been bad boys, all right? Now it's time to be good men.
Mike Lowery: Who, in the hell, wanna sing that song? [Singing poorly] Good men, good men. What you gonna do?
Marcus: Well, maybe if you sang the song like you meant it, it'd catch on.
Marcus Burnett: You were right about the glasses.
Mike Lowrey: I’ve been telling your ass that for years!
Marcus Burnett: Shit, Mike. These are like HD.
Maya Dunsmore: [To Mike] Who wants to kill you?
Marcus: I don’t trust a person that don’t want to kill him. Hell, put my name up there.
Answer: It's not about the relationship. "Grandpa" is used as slang or an insult to mean someone is old. Smith is just repeating back the word, not clarifying anything.
raywest ★
But the point is Will Smith's response - "f*cking your mother" wouldn't ever make them someone's grandpa.