Seems that dogs and cats are the best companions, certainly better than the owl seen in the following news report.
Residents over the city of SeaTac, Washington, are on high alert about a "very aggressive owl" at North SeaTac Park, KIRO-TV reported. The bird, likely a barred or great horned owl, hasn't injured anyone, yet, but officials say people visiting the park should "wave their arms slowly overhead to keep the birds at a distance. Other protective actions include wearing a hat or helmet, or carrying an umbrella."
Chase Gunnell with the Washington Department of Fish and Wildlife also noted that the owls will typically hoot repeatedly before attacking.