It's the moment where the groom holds his breath, while his mates act like a pack of hyenas - planning and going on a stag do.
A rite of passage for any man getting married and seen as the final send off before entering married life, it can range from the simplest of bar crawls to a full on long weekend away in a stunning European destination with cheap pints.
But they're not easy, especially if you're the best man and tasked with planning the excursion.
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Well this could now be a worry of the past through a new mystery stag do service.
Taking you to anywhere in Europe, all you have to do is give your group size and dates. The team at StagWeb.co.uk will then do the rest.
It's a gamble, for sure, but no one knowing where they're going could be the extra bit of excitement to make the trip truly memorable.
You can choose between a UK or European destination, as not everyone wants to go overseas for the celebration.
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A total of 71 destinations are on the cards too, including Amsterdam, Barcelona, Ibiza, and Prague if you fancy going abroad.
All trips are two night stays in a central hotel with at least two activities to do around generally hanging out and celebrating.
One package advertised as what you could get is the 'Buda Blast', a two night stay in central Budapest with airport transfers, a guided bar crawl, guest list nightclub entry, target shooting, beer biking, and lap dance entry.
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There's also domestic packages like the 'Liver-Baller', a two night stay in central Liverpool. It comes with nightclub entry, bubble football, comedy club entry, strip club entry, and bar entries.
Creative Director, Jon Stainer, said that StagWeb created the service, which he says helps to take the stress out of planning a stag do completely.
Jon said: "One of the biggest sources of planning anxiety for best men is deciding where to go, so we thought we’d take that out of the equation for them.
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"Our job is to make the process as stress-free as possible and to ensure they have an unreal stag celebration, so we’re shifting the onus onto us to deliver.
"All they have to do is tell us if they want a stag do in the UK or Europe, when they want to go and how many people are going, and we’ll sort the rest.
"While the whole thing is going to be a mystery, they aren’t going to get short-changed, that’s for sure. It’s in our interest that they have a great time, so they come back and book again, but even if this was a one-off event we’d want them to have a legendary weekend they’d be talking about forever."
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Flights aren't included with the deal, which needs a £50 deposit to secure.
The total cost per person is £199 and has to be paid two months before the booking.
If there aren't any flights that suit the location of choice, you can swap to a UK package.
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