V andals have been caught on CCTV spray painting penises on the wall of a family business - leaving the owners baffled as to why they are being targeted.
Crass yobs drew the obscene anatomical graffiti six times within the past year.
The family locksmiths, Apache Services in Tait Street, Dalkeith, Midlothian , has been vandalised 11 times since Easter, including having cables torn from the walls.
The distraught owners, Sharlene and Bob Bain, initially assumed teens were responsible for the graffiti.
But they were astonished when CCTV captured two overweight middle-aged men with thinning hair, dressed in hoodies, approaching the business at 2.30am on December 12.
The clueless vandals did not even attempt to cover their faces as they approached the shop, and one of them pulled out what appeared to be a can of spray paint.
Sharlene, 45, said: "They're spraying willies every time.
"I just don't understand it.
"It's on the stonework and it's a listed sandstone building so we'd need to get it professionally cleaned.
"It'd be a massive expense so we're waiting until they get those responsible - then they can pay for it.
"They're two older men, I really didn't expect that.
"And two, not one.
"More than anything I want to know why?".
Her husband, Bob, 47, is being treated for lung cancer and working in the shop, which they took over from Sharlene's family 11 years ago, provides him with some stability.
Mum-of-three Sharlene added: "I've been asking myself if we have any enemies.
"Maybe someone had a key cut that doesn't work.
"I can't think it's another business, we've got no real rivals.
"I've watched it and watched it and all our friends have watched it but nobody recognises them.
"The police sergeant said it could be a case of mistaken identity."
After discovering the latest offensive image tagged on the building, the couple posted footage on Facebook.
But Sharlene remains confused about the purpose of the paint attacks.
She said: "One of the times they sprayed a willy in white on the door and windows with black railings on.
"Then they came back and did the same but in black, so effectively turning it back to its original colour - it just makes no sense at all."
A spokesman for Police Scotland said: "Officers were called to a business premises on Tait Street in Dalkeith around 8.40am on Thursday, December 12 following reports of offensive graffiti on the building.
"Inquiries into the incident are continuing.
"Officers are following a positive line of inquiry."
