Karl has a skewed image of sheep...

Karl: And sheep probably have night vision or something.
Me: ..
Me: ...wut
Karl: They need something to make them useful.
Me: It's called wool. o_o
Karl: Or night vision.
Karl: It's how they hunt.
Me: ...................
Me: wut
Karl: So they can see their prey, sheep use night vision
Me: .....what do sheep prey on?
Karl: The innocent!
Me: ....