<chuckle> I'm gonna throw in on this 'pick on Limo' day too. Limo's, Salers and Chianinas are, on average, the most foul tempered of cattle (Chias won't typically try to run you down, but I've seen em clear fences like you wouldn't believe). I don't much care for Longhorns when they calve either.
Anyone ever worked with old fashioned Black Angus cattle? The little short bodied, stub legged ones? I don't see them around anymore, but on calving day, and for the next couple weeks after, you couldn't get within 100 yards of a pen

The neighbor had a herd of 50-60, and when you'd ride by them doing checks, the cows would storm out of the bushes and try to take your horse out from under you.
I owned one, and she calved on a brutally cold night. I couldn't get her to move the calf in on her own, and she kept charging me. Finally the calf got up, and chased me into the barn, with this maniacal cow hot on my heels. I got her locked up, then went around the back of the shelter and popped open a little peek-a-boo door I've got back there. Her calf was lying right there, so I checked its ears. Next thing I know, momma was snapping at me, and bit me, lol. Never owned a carnivorous cow before.
Rod