The dog didn't greet me at the door

Usually she's all Miss Wiggly-Butt, but today I didn't see her as I arrived home from work, somewhat late after having run some errands. As I sorted the mail I looked around and spied her slowly padding toward me. She was cringing in the "I've Been a Bad Dog" way, with her head down and her tail tucked in, just the tip wagging hesitantly.

Then I noticed that the carpet we use as a welcome mat and the floor around it were rather wet...

*sigh*