Her last comment makes me feel like I have failed this year...

Student: I'm going to kill whoever invented algebra.
Me: What?
Student: Who invented algebra, geometry, trigonometry, calculus?  I'm going to kill them.
Me: Well then you're going to kill whole civilizations.
Student: What do you mean?
Me: Those maths were discovered by groups of people a long time ago.
Student: You mean the creators are already dead?
Me: Uh, yeah.
Student: What the heck?  How did they figure out all this math without technology?  I mean, how would you know how to graph a line without your calculator?