Pickpocketing is a form of larceny that involves the stealing of money or other valuables from the person or a victim's pocket without them noticing the theft at the time. It may involve considerable dexterity and a knack for misdirection. A thief who works in this manner is known as a pickpocket.
   Pickpockets and other thieves, especially those working in teams, sometimes apply distraction, such as asking a question or bumping into the victim. These distractions sometimes require sleight of hand, speed, misdirection and other types of skills.
   Pickpocketing often requires different levels of skill, relying on a mixture of sleight of hand and misdirection. To get the proper misdirect or distraction, pickpockets will normally use the distracting environment that crowds offer or create situations using accomplices. Pickpocketing still thrives in Europe and other countries that are high in tourism. It's most common in areas with large crowds.
   Pickpockets may be found in any crowded place around the world. However, Barcelona and Rome were recently singled out as being particularly dangerous pickpocket havens. Thieves have been known to operate in high traffic areas such as mass transit stations, even boarding subway trains so they can use the distractions of crowds and sudden stop-and-go movements from the train to steal from others. As soon as the thieves have what they want, they simply get off at the next stop leaving the victim unable to figure out who robbed them and when.

From Wikipedia, the free encyclopedia

What is the main idea of paragraph 3?