this is pretty much how we talk to each other all the time in real life
Scene: I'm at an art museum in Frankfurt with my sister. We're looking through the modern/abstract wing and mutually failing to appreciate most of what's on display. She's carrying the museum's guidebook because her German is much better than mine, reading the titles of paintings to me when I ask.
Me: Wait, what the fuck is up with this painting? Look at it, it's like an eighth grade kid's unflattering cartoon of their least favorite teacher.
My sister: Oh my god, that's hideous...aw, whenever I make fun of one of these, it always turns out that there's some super sad story behind it, and then I feel like a complete asshole for laughing.
Me: I know, I know...well, check the book. Let's find out!
My sister, sounding sad and horrified: Julia...it's called "Portrait of My Torturer." The man who painted it survived Auschwitz.
Me, also sad and horrified: Fuck! That's awful! You were right. I feel like such a tool, goddamnit...waaaaait a minute.
My sister, cackling: You shoulda seen your face! You looked like you just saw someone run over a puppy! Oh my god!
Me, laughing, not actually upset: You were making that up! Oh, you asshole! You're an asshole! You really are!
My sister: The title is in French! I can't read French, I don't have a clue what it says! You're so gullible. God.