In case you were wondering, I did finally get a hold of Teenager Sheep and trim her nasty hooves. The'y're green in the picture because it's been rainy, muddy and gross in their pen. The left one is done and the right one is still overly long, above.
On a side note, through an unfortunate discovery and raunchy moment, it was discovered that Max the dog is madly in love with Teenager Sheep. Ew.