The 14-year-old rambunctious reptile is owned by Musselburgh resident Craig Johnston, who says a close eye is needed on the red-eared slider turtle at all times.
"He moves deceptively quickly - about the same speed as a crawling baby.
"If you don't keep an eye on him, he's out the door before you know it."
Mr Johnston said Boris has been known to disappear for up to several days at a time, only to be brought back by neighbours.
"The last time, he disappeared for two days. We left the front door open by accident and he went all the way around the back of the house, under the fence and into the neighbour's place.
"We were pretty upset.
"We thought we had lost him for good. And the neighbour's dog barking all night didn't help."
Mr Johnston said he was ready to complain to the neighbours about their barking German shepherd when there was a knock on his door.
It was the neighbour returning Boris in a bucket with a few sage words.
"It turned out that the dog was barking because Boris had it bailed up in the corner of their garden.
"It was being harassed by our little turtle."
Mr Johnston said Boris went missing again last week, and his family had posted flyers in shops around Musselburgh seeking his return.
However, he was happy to inform his neighbours yesterday that their dogs were safe again because Boris had been found - this time a little closer to home - in their wardrobe.
