Let’s set the scene: You just paid good money for a spot on a dive charter. You’re geared up, excited, and then the Divemaster pairs you with a random "Insta-Buddy." Ten minutes into the dive, they’ve kicked up a massive cloud of silt, swam 50 yards ahead of you, and somehow breathed through 2,000 PSI.
Yeah, not ideal.
In the scuba world, the golden rule is "nev...