Alex Shaw: I gotta get my girl.
Merced: We can not stop the ship.
Alex Shaw: Then we have to slow it down.
Merced: What are you gonna do, are you gonna let the air outta our tires?
Alex: Go faster.
Maurice: Give me one good reason.
Alex: If you don't, I'll push you off the boat.
Maurice: That's a good reason.
Annie Porter: Jack, he was never the romantic type. For our anniversary he gives me pepper spray. pepper spray. I think it's perfume. I end up in the emergency room.
Annie Porter: I've been in worse situations than this, and panic does not help, trust me.
Annie Porter: I'll swear, I'm never leaving the house again.
Answer: There is no logical reason for it and it is purely for cinematic theatrics. It's a movie myth that cars, boats, etc. immediately explode upon impact. In real life, explosions rarely happen that way.
raywest ★