Funny French Running Race Goes Through Buildings and Tight Spaces

I've been watching YouTube of late with their many virtual treadmill running videos made by folks participating in various races across the USA and world.  The other day I came across a very funny one, 9 KM Inside The Race For Treadmill/ A la Décourverte de Dinard...click HERE to view this 55-minute piece (while it's still up).  It's a 5.4-mile race in Dinard, a coastal town in Brittany, northwestern France.  Runners start on a beach and then brush by onlookers and others just going about their daily business as they go upstairs and downstairs, around narrow walkways and even through schools, hotels and other buildings in very close quarters in perhaps the most convoluted, maze-like course ever devised.  You really get to know the town from the inside...looks like the actual people living there were completely caught off guard by the event!  I can't see doing this at home...here in Gainesville everything is separated too much: maybe we could have an on-campus University of Florida run involving running through various buildings, including the Reitz Student Union and Library West. Shands Hospital would probably be inappropriate.  I already did something a little similar during the old Five Points of Life half-marathon when we'd make a detour through the Gators' football stadium...a lot of fun, but in an event like the French one I just saw on YouTube requires a lot of volunteers standing at numerous strategic points to direct the runners and separate them from the rest of the poor perplexed souls who are just out there minding their own business...