I've rescued three sheep:
1 - A sheep with her horn curled inextricably round a metal gate bar. Was walking along minding my own business when I heard a frantic rattling sound, thought it didn't sound right so went over to investigate and found the silly thing stuck fast. It took quite a lot of effort to get her un-curled as she was resisting with all her strength.
2 - A sheep stuck fast in a bog. A large party had just walked past her and done nothing so not wanting to get my walking boots, socks and britches soaked I took them all off and waded in behind her in my bare feet and underpants. Managed to get my arms under her and heave her out; she staggered off and started eating grass without a word of thanks. The assembled watchers gave me a round of applause, though I'm not sure what they must have thought when I undressed and approached the stuck sheep from behind!
3 - Another sheep stuck in a bog but just a pull on her horns was enough to get her out.
Sheep karma is strong right now.