Whether you swim in a pool or ocean, use a mask and snorkel. Good eating and drinking habits will also contribute to a longer life and more time in the air. Tunnel vision is a sign of hypoxia. Hypoxia can occur in just five minutes at a pressure altitude of 18,000. Don't squat with your spurs on.
Good judgment comes from experience, and a lot of that comes from bad judgment.
Lettin' the cat outta the bag is a whole lot easier'n putting' it back in. Doctor being questioned by a lawyer on the witness stand . Yes and probably a lawyer for your firm, too. And Consider the consequences of allowing someone the liberty of roaming around an airport they know nothing about. As in allowing someone to drive his or her car on a taxiway or runway.