I just found out about an artist, Scott Snyder, who works on the Batman series of comics for DC Comics. (No, I'm not into that stuff- I just discovered it on a random Google search.)
He claims to hate horses, which isn't the problem I have with this. Everyone has the right to his or her own opinions. What disturbs me is that he has depicted several horses in his comics being tortured and/or killed in gruesome ways. Again, I have no problem with his right to artistic expression, either...but 'Batman' is commonly read by kids and young adults who may think it would be funny to REALLY hurt an animal because "Batman (or some other character in the series) did it".
And yes, there really are people out there who thinks it's fun to copy violence in games, movies and other such media. Most people are sensible enough not to act out scenes from stuff like this, but you never can tell anymore.
Horses aren't the issue here with me, either. I'd be just as bothered if dogs, cats, or other domestic animals were being targeted. Abuse of animals is all too real in our world, and it shouldn't be encouraged and taken lightly by popular media. Period!