Duh! However Cheney hadn't accepted an unnecessary invitation to the dude's house, then tell him to f*ck off...
Clearly Cheney shouldn't have said it, but it takes a special rudeness to accept an invitation to somebody's house then be a jerk.
If you can't be polite for a ten second conversation why
accept the invitation at all?
No, Cheney just used profanity on the floor of the United States Sennate toward a Senator!