Hint #1: Disney Movie
Hint #2: The vet was surprised when we brought our cat in for the first time.

Bonus Hint: It is not one of the seven dwarfs. Bashful, Doc, Dopey, Grumpy, Happy, Sleepy, Sneezy. We have had a couple of people guess "one of dwarfs".
On a side note, someone can correct me if I am wrong, but I believe that the dwarfs, from the original Brothers Grimm, did not receive names until the story was "re-done" by Disney in 1937.

Hint #3: Boots and hoses
Bonus Hint: Who is watching the horses?
Hint #4: Greater than a 100
Hint #5: Firehouse dog