I remember the last time I went to my old apartment, there's a 10 minute walk from the metro station to my place, and you have to walk through some greenery. As I did, it started to rain, but it was incredibly sunny outside. I hadn't seen a rainbow since I moved to Germany, and on my last day at the apartment where I lived 3 years, a beautiful rainbow appeared on top of it.
I didn't have any raincoats on or nothing, I was walking in a yellow shirt with white shorts (awesome in the rain, I know), but I had the widest grin on my face.