Elmo tells why Rosie smells.

It happened something like this. The day was sunny, cold wind, bright light, beautiful. We cats all gathered for a walk but She piled the dogs into the car, one dog, two dogs, three dogs, and off they drove, to walk in the wild world, we don't know where.
When they came back Floss told me why the puppy one was wet. It seems they were walking on the cliffs when Rosie found a smell like heaven and decided to decorate her head with it. None too pleased with this puppy behavior She found a big metal pond and dunked the dog, smell and all, and scrubbed and washed and Rosie had a swimming lesson and a bath all in one.

And even though the bath was in beautiful rain water still an essence of something hung around Rosie, a reminder of the walk on the cliff tops.
This evening She discovered that the pungent scent of fox, which is perhaps the worst smell, unless you are another fox, can be removed by washing in tomato sauce. If I was Rosie I would run now before she gets mistaken for a hotdog.