It depends, apparently. Remember that race greyhounds are trained to chase a small furry object, and cats fit that bill pretty well. I did know of someone whose greyhound was fine until one day, off the lead, it saw a neighbour’s cat and leaped over the face and tore the poor thing to bits.
Any of you greyhound owners also have cats? I’ve heard of people having both and seeming to get on but interested to hear anyones experience.