When you earn millions from one fight, you have the right to splash the cash and feel like you're king of the world.
Conor McGregor has certainly done that. Since losing to Floyd Mayweather in the boxing super fight on 26 August, the man they call 'The Notorious' has been living it up in Ibiza.
Aboard a luxury yacht, McGregor was enjoying the calm sea, bragging about his 'wealth belly', when he spotted 'Sailing Yacht A' – the £360m mega-yacht owned by Russian billionaire Andrey Melnichenko.
The Irishman immediately posted his thoughts on it.
He wrote: "The 360 million dollar 'sailing yacht A' pulls up out the back garden this morning. 'Sailing yacht A', it's called.
"That's how you know the owner doesn't need to give a bollox about anything. Sailing yacht A. Most expensive yacht in the world. 360mill. Owned by a Russian billionaire. Google it. Crazy."
We'll save you the Google – it was designed and built in 2015, before being handed to its owner in February 2017.
Melnichenko, 45, has an estimated personal wealth of around $13.2 billion (£9.9bn), and in 2017 ranked as the 89th in the Forbes World's billionaire list – making his fortune as an international industrialist with assets in fertilisers and energy.
And just to shed a little more light on the Irishman's situation, just next to Ibiza lies Formentera, the island of the rich and famous who enjoy white sands and turquoise waters – similar to that of the Caribbean.
After examining the vessel on his telescope, McGregor then decided to go up close and check it out in a little finer detail.
The boat boasts 300ft masts (bigger than Big Ben), has eight decks, a swimming pool, an underwater observation pod, and is 142.8m in length.
McGregor humbly then added: "That was a mad scene. I only posted 'race to the next yacht' two days ago and then this one pulls up right out my back garden. The biggest one of all.
"This is an eye opening level of opulence to witness first hand. To me, it is truly motivating.
"I'm starting to think I don't have a wealth belly just yet. I'm more just rich fat now. I must keep eating. I wonder if my lunch is ready."
Maybe a couple of other big fights are in order for McGregor to achieve a satisfactory level of richness then.