Titanic Captain's Inquiry

Okay, so basically, the Titanic was this HUGE ship that everyone thought was unsinkable, right? But guess what? It hit an iceberg and started sinking. The joke is that the captain is asking where all the water is coming from like it's some kind of mystery, even though the ship is, ya know, SINKING. It's funny because it's so obvious, but he's acting like he has no clue. It's like you asking where your phone is when it's in your hand. You're not the sharpest tool in the shed, are ya?