Yorkster -- Congratulations on your graduation from obedience! A fantastic accomplishment for you and Scout. I'm with Rachel, it can't hurt to have her checked for a urinary tract infection and you might ask the vet to check her for diabetes at the same time. On the off chance he/she detects bladder stones (one of mine had this diagnosis about 6 years ago), go with the prescription diet for a couple of months and then move her to a GOOD senior diet like Authority (PetsMart's house brand).

Liking to be wet is the Labbie in her. They love water and will take it in any form. It sucks when you're all dressed up and they come in and shake on you, but it beats having a wussy dog like mine that hates to go out in it at all.

If you can get into that advanced class and work on agility, I think that would be great and Scout will probably love it! Remember, this dog has more brains than she knows what to do with and the more advanced work will give her something to think about. And the activity level will satisfy her need for doing. Keep up the good work, sounds like you two are really getting it together. Good luck at the vet's.