If you stick a pin in a map of the world, the chances are that Colin Siller will have spent time there playing or coaching with a bat and ball for company.
For the last 20 years, the peripatetic Scot has resembled The Flying Dutchman, endlessly travelling the globe and spreading his beloved cricket gospel with the attitude that nothing is impossible if it is approached with a sufficient amount of verve and va-va-voom.
Today, he flies out to Rwanda, a country which is in the process of rebuilding itself after a bloody civil war, and although Siller has never been there before, the only question which mattered when he was contacted recently by the country's association was "When can I start?"
To some extent, this fellow is a sporting "Zelig"; you might not know the name, but the odds are that you will have bumped into him at some point on the ICC's Associate and Affiliate circuit.
In the early 1990s, coached at age-group level in Scotland, and worked with a string of future stars in the mould of Fraser Watts, Neil McCallum and John Blain.
Then he spent a decade in Ireland, first as the professional and coach at the Holywood club, before joining Instonians, whose ranks included internationalists, Andrew White, Regan West and Rory McCann.
He even qualified to play for the Emerald Isle, because his birth father – Siller was adopted and never actually met the man – was Philip O'Rourke, who was in the Irish Guards.
Next, in 2005, he gained the opportunity from the late Bob Woolmer to become Canada's assistant coach, and was a pivotal figure in their reaching the 2007 World Cup. Since when, he has popped up in all manner of places, including Fiji, Austria, Sweden and Zimbabwe, gaining converts and preaching to the unconverted with a rare alchemy of passion, patience and professionalism.
"The Rwandans had signed a national coach from Uganda, but he pulled out and they needed someone who could start immediately and I was available, so they want me to try and help them win the ICC Africa T20 Division 3 competition in Johannesburg in late April," said Siller, who was, until recently, on a short-term contract as specialist bowling coach with the Matabeleland Tuskers in Bulawayo (whose head mentor is the former Zimbabwe test stalwart, Dave Houghton).
"For me, the possibility of helping Rwanda in that objective and also helping Oli Broom, the Project Director for the Rwanda Stadium Foundation was too good an opportunity to miss. At the moment, two of the first-class teams in Zimbabwe are considering me for coaching positions, for the new first-class season, which begins in September. But, for the next three months, all my efforts will be expended on doing my best for Rwanda and assisting them, on and off the pitch."
Siller originally made waves at Watsonians (in Edinburgh), but has never been interested in adopting a parochial perspective. Instead, he is a Scot of the old school, somebody who regards himself as a world traveller, imbued with the philosophy that genius is an infinite capacity for taking pains.
He cheerfully confessed that he doesn't know an awful lot about Rwanda, but there will be no time for tourist excursions when he touches down on Friday night. On the contrary, his first coaching session has been scheduled for Saturday and that sums up the tireless industry which has made Siller such a respected figure.
"I have been to Africa a few times, but never to Rwanda, so this will be another step on the learning curve. One thing I do know is that they don't have many facilities and the ground on which I'll be working is pretty much the only one in the whole country, so that is obviously an issue which needs to be addressed, and the Rwanda Stadium Foundation [which has such patrons as British Prime Minister, David Cameron, and the BBC's cricket correspondent, Jonathan Agnew] is doing its best to improve the situation.
"Despite that problem, they have some talented players, and are favourites for the T20 event, and while it seems that their bowling is stronger than their batting, I will be doing my best to pass on as much experience as I can. It's a short-term arrangement – I return to the UK on June 1 – but that doesn't mean I can't make a difference and, virtually from the moment I arrive to the minute I leave, I will be putting in as many hours as necessary, because Rwanda have given me this job and I am very grateful to them for that."
As somebody whose career has taken him across the planet, Siller is better equipped than most to assess the transformation which has occurred among the ICC's emerging nations. When he started out, the notion that Ireland, for instance, would defeat England and Pakistan at different World Cups would have been dismissed as laughable.
But the times they are a-changing and Siller believes the process is actually speeding up.
"It's the same in Scotland, in the Netherlands and elsewhere and it can only be good for the game, because it is opening up new horizons and there is hardly a place where cricket isn't on the rise these days. In Africa, you obviously have Zimbabwe and Kenya, but you also have the likes of Uganda, Namibia, Tanzania and Sierra Leone, and the Rwandans are ambitious to move up and join some of these countries. It is all very healthy. Now that we have Intercontinental Cups, World Cricket Leagues and global T20 events, the sky is literally the limit."
As somebody who has already amassed tens of thousands of air miles, Siller should know. And his magical mystery tour continues apace this weekend.
For more information about the Rwanda Stadium Foundation, log on to www.rcsf.org.uk