I recollect being told that once a sheep was on its back it could never get up again unaided. (surprisingly I don't blame Simon Davey for this!) Cheers.
Don't they get stuck on their backs when they are full of wind and someone has to poke them to let it all out ?
Poking a sheep to let the air out? Nah, that's the excuse the Taffs use when caught in the act of sheep sha****g.
No it's true, they eat too much clover and it inflates them bigger and bigger. Can't see why they bother. Stupid animals !