Originally posted by popcornbird
Most likely, because people do not raise them properly,

And that's the ONLY reason they do such things.

Because of breeds such as chows, pit bulls, rotties and so on and their built and muscles, people use them as weapons and don't treat them as living beings. They treat them as property, without feelings. In reality, dogs have as much feelings as humans do, whether it be pit bull or labrador.