"Wait, why is my time to apoapsis decreasing?" FAR/NEAR players: "Everything seems to be fine, except for the fact that the rocket is slightly tipping away from prograde [seconds later the rocket enters a flat spin and disintegrates]." "Oh shoot, the navball was giving me orbital speed, not surface speed." "What happened to my chutes?" "Darn, I forgot to brake!" "I wonder what space smells like..." "Nope nope nope nope nope..." "I don't need this extra fuel tank anyway." "My fuel's low." "Let me try something stupid." "I don't remember staging that booster." "Woah, that booster's flexing like mad!"