I felt pretty rock 'n roll carrying Cava up to my room at the Sir Adam hotel in Amsterdam. It had just hit midday, I'd checked in and found a bottle of bubbly at reception, so I poured myself a glass of vino and headed off to explore. My headed started to spin a little as I got in the lift to my room on the 4th floor. There was a giant disco ball and the floor was flashing in different colours. Some funky music was playing too. The doors opened and it was very dark. I felt like I'd entered a secret bunker as I tried to crack the code for the key card-activated door with my Cava wobbling aw...