Oddly, she was wagging her tail when I looked at her at a little before 3 this morning. She had stepped in her mess so, although the mess itself was on a pad, her entire area had to be cleaned.
Fortunately I was able to clean her paw and get her out before anything else had to be done. So we were still up for an hour but there was no left-over rug cleaning for today.
She was probably wagging her tail because she was relieved that you were going to rescue her and get her cleaned up. Poor little thing.
Never a dull moment when you have a new puppy, eh? :o]