Janek runs an online guide to Prague. In this video, he stood in front of an infamous tourist trap exchange bureau in Prague all day and warned people who walked in to go down the street to a legit exchange office. The rip-off place sells 15 CZK for 1 EUR. Legitimate places will give you 27 koruna for a euro.
The tourist trap called the city police, but Janek made his case that he was within his rights to warn tourists about the place. So the tourist trap called the state police, and the same thing happened. The tourist trap also handed Janek a letter threatening to send him to prison for two years. Janek was not dissuaded.