I've been working on my photo-a-week / Project 52 this year, trying to "theme" each month as I go. (The whole thing so far is at http://howardpa.zenfolio.com/p209786251) May's theme was shadows. I saw this one this morning.
Our sheltie, Sadie, wasn't going to move just so that I could get a shot of a shadow. Probably better that way.