4. "Go F*** Yourself" (X-Men: First Class)
The dialogue Erik Lehnsherr: "Excuse me, I'm Erik Lehnsherr."
Professor Charles Xavier: "Charles Xavier."
Logan: "Go f*** yourself."
Why was it unexpected or out of place? Although Logan is the kind of guy you can imagine regularly muttering profanities, the fact is that, up until this point, the X-Men franchise had refrained from resorting to swear words in its previous four outings, so to drop an F-bomb out of nowhere - as funny as both the cameo and scene were - was completely out of the blue. There's very little more to say about that - this was the use of a very strong expletive in a franchise that hadn't really previously gone further than Logan saying "you're a dick" to Scott Summers.