A buddy of mine has a koi pond in which he added a keeper bass to a few years ago. The fish has grown well, is near 4 lbs and and because of the ponds orientation to the sun, is currently in full autumn mode of eating everything he (she) can get his (her) mouth on. Last week, I watched as 10 large goldfish were devoured as soon as they entered the water - the feedbag is on!!
So I was over at his place this afternoon and saw something I had never seen before. From inside the house, my friend shot a laser pointer through the slider window onto a rock in the pond in about 6 inches of water. Immediately the bass shot across the pond striking at the red light. The fish didn't just mosey over to inspect the light, it was in full on attack mode splashing water out of the pond. When he moved the light to another position, the bass attacked it there. He only did it for a minute or so, he didn't want the fish to possibly injure itself trying to eat something that wasn't there.
I don't think this experience is useful as to lure selection, unless I decided to throw a super miniaturized Ned Rig in red. Also, while this could be useful to help locate fish that are either cruising or spread out on an area like a shallow flat, I think a fish aggressive to show itself like this would also strike most of the presentations we throw. What I did learn is how aggressive a feeding bass can be and that they will often try to eat something before they figure out what it is.