If you think this job is going to be easy, you're in for a 'rude shock'. [=you will be unpleasantly shocked when you find out that this job is not easy at all]
He's about to have a 'rude awakening'. [=he's about to find out something that will shock him unpleasantly]
I was 'rudely' [=suddenly and unpleasantly] awakened from my nap.
(..) you know where I live. Oh, shit. They're home. Quick. Let's go up to my room. I should say hi to your dad. I don't want to be rude. Nice suit. You're looking good, Mr. Burnham. Last time I saw you, you looked kind of wound up. (..)1999 American Beauty