Trust is one of the indicators measured by the World Happiness Report that ranks 156 countries by how happy their citizens perceive themselves to be. Trust is built through values such as the fact that citizens are encouraged to speak up when they witness something that is not okay. At the same time, the built environment also communicates trust. Take for example, the metro which trusts passengers for paying their fees and therefore, lacks the typical security measures such as the turnstile access control. If caught for not having purchased a ticket though, the fine is steep. Another indicator of the Danish etiquette for being respectful for others’ individual needs is that metro trains include a quiet section—similar to those in the libraries—where passengers need to be mindful of the noises they make. And, during major events sponsored in the city, the metro is free to increase accessibility.