Why can't we be friends?

We live across the street from Gyro, a cute little Chihuahua. Arliss is intrigued with Gyro, the same cannot be said for Gyro. Gyro's human Paul tried to mediate the third or fourth "peace talk"this afternoon. Progress has been slow, but relations are improving . Gyro still barks and lunges at Arliss, but now he wags his tail, and I think he even smiles a little.