Cycling enthusiast Sergio Almeida has come to public attention in Prague for his clashes with the authorities, both online and on the streets. The Portuguese man, who is 45, criticizes the city\u2019s cycling lanes and aggressive drivers on social media and even streams videos from his bike live on YouTube. The magistr\xe1la, the large through-road that cuts across the top of Wenceslas Square, is a regular bugbear of Almeida\u2019s \u2013 and when we met metres from it he described run-ins he has had with city officials.