While most of us are used to chugging any birthday booze within no time at all, one lad has been saving his - and now it's worth so much that he's going to auction it all off, with the money going towards buying his first house.
Matthew Robinson, 28, has been given a bottle of 18-year-old Macallan whisky every year by his proud dad Pete, 64.
It's a ritual that Pete's been honouring annually since Matthew was born in 1992, meaning he's now accumulated a fair amount of the single malt Scotch.
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Dad-of-three Pete first - who lives in Milnathort, Perth and Kinross - opted for the brand as he was working for a company that manufactured some of the raw materials for Macallan.
But as Pete continued to buy a bottle of the Macallan single malt Scotch for Matthew each year, the whisky brand became more successful and the price went up.
Over the course of his son's lifetime, Pete has spent around £5,000 on birthday whisky, but Matthew's collection is now worth more than £40,000.
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According to experts, it is known as a 'vertical', and is unusual to find.
Looking back on the series of gifts, Matthew said: "I think it's been one of the best things he could have done.
"I never anticipated the potential it could have for me in my life.
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"I'm currently looking at buying houses and having that money available to me is a massive weight off my shoulders - especially in these uncertain times.
"It's just very special."
Matthew now lives in Taunton, Somerset, working for a beef manufacturing company, and plans to buy a house - with the proceeds of the auction going towards the deposit.
And before you worry about any family rivalry, Matthew's siblings were also gifted similar collections.
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Pete, who works as a manager for a malting company, said: "Looking at the bottle, I realised that it would be quite interesting to collect 18 bottles over 18 years and then give my son the final bottle, which would be his birth year.
"I also liked the idea that the materials I made would eventually be used in the making of the scotch.
"As time went by, I realised that the collection was starting to appreciate in value considerably and watched the brand with more interest."
The collection is being sold by brokers Mark Littler Ltd, and is listed online for offers over £40,000, with every bottle in its original box.
Mark Littler said: "In the whisky and wine world, we call a consecutive run of vintages a vertical.
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"Normally it would take a lot of time and effort to amass a vertical like this, but this is
the opportunity for a collector to purchase them all instantly.
"In addition the Macallan 18-year-old is currently one of the most sought-after single malt Scotch whiskies in the world, so you've got a hot ticket item that is sure to be highly desirable to aspiring whisky collectors and investors."
Featured Image Credit: SWNSTopics: whisky, UK News, News, Drink, Food And Drink