Trying to be too cool all the time will only ever end in tears. It's bad enough that this guy is trying to look like a rough, mean dude in the picture. He then makes it worse by admitting to Fridman that he's lied to his friends about owning one of the most expensive luxury cars in the world, and his only hope of pulling off the lie is providing photographic evidence. He was so nervous about asking, though, that he managed to spell 'put' as 'pet.'
Fridman must be an animal lover, because he was only too happy to do some petting. In order for that to happen, this wannabe gangster had to turn into something that he might want to pet. Now he's a dog, and he's getting a pat for being a good boy. He did get his Bugatti though, so we're sure that showing this picture to his friends will put an end to any suggestions that he's been economical with the truth.