“Tehran traffic authorities have introduced restrictions on the amount of cars on its roads in attempt to reduce congestion and pollution in Tehran downtown. They did this by adopting odd-even traffic restriction on alternative days. Cars with number plates ending with odd numbers were restricted one day and the next day cars with number plates ending with even numbers were restricted. Since they have started using traffic cameras to check the car plate numbers, a new strange job has formed. They get money from you before you approach the traffic camera and just walk behind your car while you drive slowly.”
http://www.quora.com/Jobs-1/What-is-a-job-that-exists-only-in-your-country