"I think he just loves the attention. He enjoys the company and just loves people. Some days he'll still be here at 5pm and we have to physically remove him," Ms Potter said.
She was unsure why Joey had taken such a shine to the shop, though said he was a hit with customers.
"Being an SPCA shop, it's just cool that we have a regular visitor who's a cat. He's like our mascot. He's a big handsome black and white fellow with character just oozing out of him."
Mr Davies said Joey had been part of the family since he randomly turned up on their doorstep about three years ago. The couple made multiple attempts to find his owner, but no one ever came forward.
Joey slept inside at night but was always up early to commence his daily routine.
"When Annie and I leave the house he'll come with us us - but only so far," he said.