I really love my Manxes, such characters - but that Pricket is a devil with those horns. I run them with 6 other 'fleece sheep', all hoggs and gimmers, and the two Manxes control two 10' troughs between them!
I am a little worried she'll drive her pointy horns into other ewes' lambs, but when they did have a ewe and lamb with them for a day she did have a good look but didn't threaten the lamb at all - she shooed the mother away from 'her' grass, though, even though she (Pricket) is less than half the size of our commerical ewes!