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.
(..) Havin' a good time, are ya? I love DuLoc, fiirst ofall. - Very clean. - What are you doing here? Really, it's rude enough being alive when no one wants you, -but showing up uninvited to a wedding-- -Fiona! - I need to talk to you. - Oh, now you wanna talk? (..)2001 Shrek
(..) Please, monster! Can't you see I'm a little busy here? Look, pal, I don't know who you thinkyou are! Oh! Ofcourse! Oh, how rude. Please let me introduce myself. Oh, Merry Men! Ta, dah, dah, dah, whoo I steal from the rich (..)2001 Shrek