We've stated before that:
As a player, it's vitally important to make sure the GM is reminded of every possible detail that can provide a positive modifier to your chances of success in a critical dice roll.The other side of the coin is that, as a player, it's vitally important to happen not to notice all those inconvenient details that might provide a negative modifier to your chances of success in a critical dice roll.
Jango Fett: We don't have time for this. I'll use a torpedo.
Obi-Wan: I dodge.
GM: It's a homing torpedo.
R2-D2: Finally, a weapon that makes sense.
Obi-Wan: I weave between these ridiculously close asteroids.
Obi-Wan: Don't blame me. Look at the battle mat.
Padmé: Ah, interesting. Large ring objects imply a very young planet. Barren, with rugged topography. And volcanoes!
GM: O-kay... <scribble scribble>
Padmé: Of course the asteroids are in parallel orbits, so stationary to first approximation in a rotating reference frame.
Padmé: A decent homing missile should easily track you.
R2-D2: Woo-hoo! Unavoidable. Missile.
Obi-Wan: I release chaff.
GM: No good. It's an EMP device. Your ship loses all power.
Obi-Wan: Thanks, Jim.
Padmé: I'm surprised you didn't notice that your ship couldn't dodge effectively. You're usually good with fine details.
R2-D2: Wow, it feels just like old times.