In the "real" world, "Fuck you!" will usually start a confrontation. In the hobby, the reaction might be "Yeah, I know. You want hhr, 1hr, multi-hour...?"
Another example, "Kiss my ass!"
Possible reaction #1, "That's not on the menu."
Possible reaction #2, "That's extra."
Possible reaction #3, "That's not on the menu, but if you tip..."
Still another example, "Suck my dick!"
The hobby reaction is usually non-verbal.
Any other examples...?