Since the Tour de France entered the mountains organisers have been pleading with fans not to run beside the cyclists.
*** Security Message for Saturday, Sunday, & alps stages: do not run beside the riders, please respect the race, riders and @letour *** #TDF
— Le Tour De France (@letour) July 12, 2013
Of course not everybody listens so kudos to the man in the blue t-shirt for taking the safety of cyclists seriously as the riders fought their way up Alpe D'Huez.
And by seriously, we mean hilariously.