Tourist syndrome is the tendency to act out of character and irresponsibly while traveling.Reportedly, 'bad behavior on vacation' has surged over 500% in the last year.Americans were surveyed as to their vacation behavior.Key findings include that over 4 in 10 admitted to breaking the law on vacation.Almost nine in ten took something from their hotel and half said they leave their rooms messier than at home.Four in ten used vacation to justify 'letting their hair down and having some fun'.Nearly half of people admitted to taking toiletries, and one in five admitted to taking stationary.Although alcohol and gambling are popular pastimes, in some countries drinking alcohol and booking hotels for sex is illegal.Half of the people surveyed think that social media makes people behave worse on vacation.Most people (61.4%) think there should be harsher punishments for tourists who misbehave.