Canadian Virginia Bennett, who lives in one of the residential apartments facing the River Thames, was getting ready to take her dog Abby forawalk when the morning calm was shattered by "the noise of metal crashing".
Make regular stops -- every two hours fora puppy, every three to four hours fora cat or an adult dog -- so your pet can takeawalk on a leash (some cats enjoy a little leash walk).
Drones are already able to take off, fly a mission and land without any human intervention, and a mechanical dog developed by the Pentagon can walkfor 20 miles (32km) without a break and obey voice commands.