Not sure about your friend but we have a cat (he's almost 4-year old now) and a border collie (almost 2-year old). We've professionally trained our BC, he is a

Not sure about your friend but we have a cat (he's almost 4-year old now) and a border collie (almost 2-year old). We've professionally trained our BC, he is a very smart and especially loving animal, but the cat is "smarter", so to speak. It is the cat that initiates and, I dare say, invents the games they sometime play with each other.