One thing that has always kind of bugged me about scifi, Star Trek I'm looking at you, is that ships that supposedly have shields always throw sparks out of consoles and equipment. If your ship still has shields, regardless of whether they are at 100% or 20% your ship is sustaining absolutely no damage until the shields are totally down. So why do they keep doing this? The only thing I can think of is that they think the audience is stupid and can't figure out they're under attack unless they give us this false feedback. You could still show the ship rocking from impact, just no sparks!