Well, I've been felled three times by tups. Twice by the same greedy Blue-faced Leicester; a sweetheart unless you are holding a bucket of food that he thinks should be on the ground with his head in it! Back damage, I don't think it'll ever be quite right... Once by an adult Swaledale, new to our farm, my own silly fault (I have told the story on here before, I think) - but I really did think my femur was broken, I was a mile from the farm on desolate moorland with night coming in, my mobile phone packed up because of the icy water it and I was in... thankfully I did manage to drag myself back to the farm and nothing was in fact broken - but it is about as scared with livestock as I have been or wish to be.
Oh, and our current gentle Charollais tup - was a greedy, bolshy, pushy boy as a ram lamb but now is respect itself.