I love seeing rainbows.  I know it's all science....sun, water, refraction, reflection.  But there's still something magical about seeing one.  After leaving work, I drove through a 30 second downpour and chased the rainbow down the street until it stopped raining enough to be safe to take my camera out.  The best part was when I was taking pictures, a guy mowing the yard across the street shouted out to me, pointed to the rainbow, and made a thumbs up sign.  Everyone loves seeing rainbows!