Tommy's owner, Matt Duff, was not surprised by his cheeky dog.
Fortunately for them, North Otago Dog Training Club secretary and event organiser Wendy Blair said the course would get a good spray down after the day's events.
Blair was very pleased with how the day had gone and said it was great to see people enjoying time with their dogs.
"A lot of people take their dogs for walks or out to the park, but here they are just having fun with them."
However, the event was not just about having a good time.
The club used the day as an opportunity to give training tips to local owners, demonstrating how to best lead their pooches.
Club member Nelson O'Brien said the key was to find out how the dog ticked. Whether it was via the use of treats or rewards, when a dog was obedient the owner enjoyed it more, he said.
Co-hosting the event was the Waitaki District Council, which provided information on responsible dog ownership and local bylaws.
Council compliance officer Tristan Hope said the district had plenty of places for people to take dogs, off or on leashes, but the trick was to always have them under effective control.
He said the council hoped to raise awareness about what it did.
"Our bottom line is to reduce dog-related harm. It's a lot more than catching dogs."
Oamaru's Dog Expo would run every second year, the next event being planned for 2023.