So when it finishes, it's a shock and you realise that you should have prepared better.
BBC: Young rugby league stars told to prepare for retirement
After a few hundred miles and a quick poke around, you realise that the wonderful seats are disturbingly familiar.
It's even more of an achievement when you realise that the Australian Open is played on hard courts.
We're a strong unit, we're like a big family really and you realise that no-one means to drop catches.
And exposed as you are, you realise that everybody loves this car.
On reflection, you realise that, much of the time, Mr Browner has not really been talking about hospitality at all.
Do you realise that since nineteen eight-five, I believe it is, we have lost in this city nearly ten thousand people.
As a player, when you realise that things aren't going your way you have to do a job for your team-mates.
Each prisoner who emerges unreformed will start committing crimes again (a more frightening thought when you realise that one in four commits violent crimes).
But listen to the story of Vung Boih, a 17-year-old girl with sad, faraway eyes, and you realise that fate can be infinitely more cruel.
"If you provide them with much more sophisticated material like letters, printed material, music, or any kind of very highly structured material, you realise that their peaks of ability come out, " said Dr Mottron.
BBC: NEWS | Science/Nature | Autistic ability 'underestimated'
You get a sense of the sheer force of their numbers when you realise that Mrs Townsend is not the only clan member running in Maryland: her cousin, Mark Shriver, is trying to get into Congress.
ECONOMIST: The pick of the Kennedys is having a tough time in Maryland
"When you realise that half the budget is already committed to contracts, that means effectively wiping out almost the entire new build programme for the next four years and that will have a tremendous impact on the construction trade in NI, " he warned.
Once technology is implemented, it is critical to measure the use of the technology to ensure it's delivering on the ROI (return on investment) that you hoped to get out of it, and to see what further gains you might realise that you didn't expect.
Expect your adrenaline levels to rocket and, in the warm, thin air, you will realise that cowering in front of an oncoming silverback is not something you could ever get used to.
"There might not be much left in its original form, but if you look around the village, and beyond to Cardigan and Poppit Sands, then you quickly realise that most of the abbey is still here - just as part of other buildings, " she said.
All of which will make you begin to realise that this is one prize that you didn't really want to win.
Ms Suu Kyi also spoke of a growing perception that Indians no longer valued democracy, saying that it was only "when you don't have democracy that you realise how precious it is".
Of course measuring ROI might not always be a positive experience, but you might also realise that the implementation of technology is not delivering the results you expected.
How many times have you found yourself at a special occasion only to realise that you have spent the majority of the day behind a lens of your camera or mobile?
BBC: Wearable tech pioneers aim to track and augment our lives
You have to realise that there is no definite answer in a scientific work!
When you the tour the kitchen and the wine bodega -- as you inevitably will if you secure a reservation at El Celler -- you will quickly realise that all three men were born with a culinary gift that they continue to develop.
We say that any reasonable person would realise that if you shake a baby 20-weeks old, you are exposing that baby to a risk of harm.
The name is repeated at least three times, and finally spelt, to realise that you are through to downtown Delhi!
"Most of us accept road deaths and it's only when it happens to you that you realise 90% or more could've been avoided, " she said.
BBC: NEWS | UK | Wales | North East Wales | MP wants accident law change
"People just don't seem to realise that you can ski in April and even into May, " says Betony Garner, from the Ski Club of Great Britain.
It is only when words on the walls start appearing, admonishing the player or offering backhanded encouragement after yet another violent explosion into giblets at the hands of a laser-equipped turret or murderous robot, that you realise the bastard is the game.
London 2012 is making us realise that, you know, we are not that bad.
Until, of course, you inspect closer, and realise that there aren't actually any buds to place in your ears.
Whereas owners of cats are compelled to realise that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods.
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