A PSYCHOLOGIST using a complicated formula declared yesterday to be the happiest day of the year -- but the proof for one lucky young man was at Lotto headquarters in Dublin.
And his particular proof -- in the shape of a cheque for €29,430,608 -- was even more mind-boggling.
The man, who wishes to remain anonymous, picked up the cheque on behalf of his family yesterday morning after winning half of last week's EuroMillions jackpot.
"At the moment, we are in a 'deep breath' phase -- getting used to the win and making sure that we get some good advice on what to do with it," he said.
"We plan to have family celebrations and we are all, needless to say, extremely happy. As a family we are very close and we plan to take a holiday together as soon as possible, so that's something we will look forward to planning."
The €6 Quick Pick ticket was bought in Newcastle, Co Dublin, last Friday. But the shop owner Dora Kelly, said that she had no idea who the winner might be.
And she ruled out combing through the CCTV footage from the busy petrol station on the edge of the town in an attempt to identify the new multi-millionaire.
"It would take a lot -- from six in the morning until 10 at night -- to see if we could see the winner," she said as she received a cheque for €25,000 for selling the winning ticket.
"Maybe they'll send us a note and say, 'thanks for the win'. Maybe they might, anonymously even, because I think they are staying anonymous."
But the question is: will they be able to keep it to themselves, given the sheer size of the win?
"We'll see if it comes out down the pub tonight," local man Kevin O'Connor said. "Isn't that how it came out about Dolores [McNamara's €115m win] down in Limerick?
"But it could be people passing through Newcastle -- that petrol station is very busy so there's no guarantee it's someone from here, or even from Dublin."
The winning family discovered their good fortune last Saturday, and have succeeded in keeping it quiet so far.
The other winning ticket was bought by pensioner Brian Caswell from Bolton in England.
"Our advice to all winners would be to take their time with this amount of money," Paula McEvoy of the National Lottery said.
"It's not something you should make decisions on lightly. We know from lottery winners over the years that the people who have made decisions after a period of reflection do best, and make the money work for generations of their family."
For the rest of us, there's another chance tonight with a Lotto rollover jackpot in the region of €5.5m.