If you were one of the 2,000 people who applied to be the official Water Slide Tester for the travel company First Choice, we’ve got some bad news: The job has been filled. A 22-year-old college student from the UK landed the world’s greatest job and will travel the world testing water slides at the company’s array of exotic amusement parks. A day’s work for Seb Smith will now consist of riding awesome water slides and then ranking them based on criteria like “adrenaline factor” and “biggest splash”. This list of the best jobs in the country just got a new No. 1 ranking. Sorry, Actuary…