Oil Spills

Every now and then something happens where I find myself really wishing I could've just been in the room when the engineers were doing their design thing. Presumably they did the best they could, and it just wasn't idiot proof enough. Here's what probably happened:

Engineer 1: So we'll be carrying 1300 tons of oil. How do we prevent it from spilling everywhere in an accident?
Engineer 2: Lets beef it up. We'll give the ship a double hull.
Engineer1: Sounds good. And what happens if we hit something pointy, and it manages to pierce both walls?
Engineer 2: Well it would be stupid to put all our eggs in one basket. Let's make 10 compartments for the oil, so if we rupture we don't lose all of it at once.
Engineer 1: Got it. Ok, what happens if they hit something really big really hard? Like, they run into a major bridge?
Engineer 2: A bridge? Fuck, man, we put a rudder on it, right?
Engineer 1: Right, steering. Ok, I think we're good.
Engineer 2: I'm going on lunch break.