Leaving something behind on a vacation can be a total nightmare. We've all said "farewell" to chargers, dresses, toiletries, passports and more (children?). Comedian, David Bussell, always leaves something behind, but it's nothing you can put in a bag; it's his project Hotel Graffiti. We've collected our favourite hidden graffiti messages from his latest hotel project, check out more on his blog. Enjoy!