Physics students after school:
1st student: "Cool car, Doc!"
Old Guy: "Thanks."
1st student: "A Legacy, huh? That's the one with Porsche boxer engine, right? So how come it says Subaru on the back?"
2nd student: "He put that on there so the cops don't mess with him, dummy!"
1st student: "Brilliant, Doc!"
Old Guy: "You
both just flunked my class!"