A dad selling his car was left stunned with a potential buyer asked if he could pay in £50 a week installments.
John Jeffrey thought the request was "absolutely ridiculous" and decided to have a little fun - even convincing the gullible lad into posing with dog food on his head.
The 37-year-old mechanic had taken to Facebook to sell his 2007 Volkswagen Golf GT TDI 170 and listed the bright red motor for £2,650.
He says he was shocked when one man asked if he could drive off with the vehicle that that night but swore 'on his gran's ashes' that he would pay him £50-a-week for it.
It would taken the guy more than a year to pay the car off - so John thought he'd prank the lad.
He quickly suggested he send a 'random picture' to prove his offer was not a scam.
John was left in stitches when he managed to talk the polite but nonplussed buyer into posing with a dog treat on his head and then a spanner.
Sharing the entire hilarious message exchange on social media, John's post has already racked up more than 22,000 likes and shares.
John, from Dundee, Scotland, said: "I was just selling my car and he asked if I did finance which I found absolutely ridiculous.
"So initially I just kept on going and I thought at any stage he's going to find out and know that this is obviously just a joke.
"But he kept on coming back with more and more and gold so I just kept it coming.
"When I asked him for that silly picture I thought that was definitely the point he was going to say no and he came back and sent those pictures.
"I think after I posted it it went viral so quickly and he was getting tagged on it left, right and centre, so he just left the conversation and just vanished.
"When he asked if I do finance I was just laughing and when I got the pictures I was on the floor."
In the hilarious exchange, John originally suggests the young man poses with a fork and spoon on his head, but when he is unable to find one he ends up using the dog treat.
John even pretended he was going to let the lad 'take it for a week to see if he liked it first' before he even had to start making payments, which the buyer was delighted by.
