In chapter 4 of the novel Of Mice and Men Curley's wife is out there looking for trouble. She goes straight to the men's barracks to presumably ask for Curley. In reality, she must have heard that Lennie and George are the new farm hands, and she wanted to know what they looked like and such.
We know that her intentions are not pure nor innocent for she immediately starts flirting the moment she enters the place.
They swung their heads toward the door. Looking in was Curley's wife. Her face was heavily made up. Her lips were slightly parted. She breathed strongly, as though she had been running.
The men are not new to this,except for George and Lennie, with the latter looking at the heavily-made up woman in awe. This is because the former aspiring actress knows that she can cause an impression in the men. Moreover, it is clear that she was sick of Curley's attitude, of life at the farm, and with her life overall.
Yet, no matter how bad Curley's wife thinks that she has it, the farm hands have it way worse. If she decides to get one of them into trouble, she can do it easily. This is the reason why Crooks says the words:
maybe you better go to your own house; we want no trouble.
The attitude is not entirely disrespectful, but shows disdain and demonstrates that the men know what she is up to. Moreover, it is expected that her presence will not do any good to anyone involved, so why is she even there? This is essentially what his attitude encompasses when he says these words to her.
She likes to flirt with other males and they didn't want any trouble with Curley