True story, I was with my mother on holidays, and we saw this awesome rainbow across a cloudy sky. My mom went "oh shit, I forgot my camera" and was about to run back to the hotel to get it, as some hippie dude told us to just look at it. Not in a patronizing way, just with a wide grin, and we grinned back, and did as he instructed. I still have the memory of that rainbow, as it turns out, and it has been a "meme" for us since then :)