10. They Change Diapers on the Tray Table
It’s not easy to find official stats on this offense, but flight attendants report that passengers often change their offsprings’ dirty diapers on the tray table or airplane seat, even thought there is a changing table in the lavatory. Furthermore, these soiled diapers are often wadded up and wedged into the seat pocket – you know, the one you reach in to place your book, tablet or snacks. You might want to bring sanitizing wipes on board to brush over these surfaces, as the crew rarely cleans them between flights.

11. Doing Drugs Abroad
The laws of the US are not the same across the globe, so there are places where certain drugs are legal. Not that the laws necessarily stop people from using back in the States (a 2013 study showed that 24.6 million Americans aged 12 and up – almost ten percent of the population – had used an illicit drug that past past month), but there is something all the more enticing when that legal barrier is removed. Twelve percent admitted they have indulged in drugs in countries where it is sanctioned. The reality is probably much higher.

12. Skirting the Drinking Age Limit Abroad
America is pretty strict about underage drinking, and 21 is the legal age limit for imbibing alcohol (although every high school or college party could show you that law isn’t hard to get around). But when youngsters travel to places that have lower legal drinking ages – pretty much the rest of the world – they often over-indulge with impunity. Spring breakers in Cancun come to mind. The United States is joined by Côte d’Ivoire, Equatorial Guinea, Iraq, Kiribati, Micronesia, Mongolia, Nauru, Oman, Palau, Samoa and Sri Lanka with its minimum legal drinking age of 21.
