[tubbzor]

My dad was a helicopter pilot for the marine corps for 20 years and flew in desert storm and Iraq in the early 2000s. Growing up he was always in insane physical shape and actively participated and taught in Crucible[0] trainings. Part of it was certainly the 'culture' that surrounds the squadrons, but one day I asked him why he stays in shape when in war he'd never had to stand up to do his job? He told me the only thing separating him from a 'grunt' (ground soldier) was his helicopter, which the enemy could take away in an instant. The moral was you always train for the worst possible situation (being grounded behind enemy lines) and hope for the best (never having to stand up).

[0] - http://www.team-crucible.com/