George Kennedy was never young, ever. Women always come on to strange guys they meet in the marina, especially if they're wearing a blue hat. When a truck rolls down a hill it sounds just like 18 panes of glass breaking. Sextants are easily converted into microscopes. The sound of people kissing, when amplified, is disgusting.
All yachts carry cat poison.
Shooting a pipe on a boat that has not been running in several days will unleash a deadly geyser of steam. Counting money, in a lifeboat, in the middle of a storm, by looking at - is easy. Do not shoot a single 9mm bullet through a ship's hull, it will sink. That there's a different truck than we just saw them driving. Where in the heck did that collar come from, the cat wasn't wearing it in the last scene.