With the owner’ permission, a defendant took the owner’s car with the intention of driving it three miles to a grocery store and back. While on his way to the store, the defendant decided to keep the car. Two days later, he changed his mind and returned the car. The defendant is charged with larceny of the car.

The defendant should be found:

A woman was in the process of moving out of the apartment that she had shared with a roommate. She collected numerous items of hers from her roommate’s room that the roommate had borrowed. As she was leaving the apartment, she grabbed what she believed to be her laptop computer, which her roommate had often borrowed. Because it was an older, slower machine, she planned to trade it in for a different model at a computer resale store. She noticed that the laptop was much lighter than usual, but she reasonably attributed this to her diligence in following a weight-lifting regimen at her gym. When she arrived at the computer store, she discovered that she had taken a brand new, state­ of-the-art laptop that her roommate had recently purchased. She then kept the laptop rather than buying a new one.

Is the woman guilty of common law larceny?

A professor had his laptop computer stolen from his office. He went to a computer resale shop to find a replacement and saw what he mistakenly thought was his computer. He questioned the owner of the shop, who told him that someone had just sold her the computer, but she refused to give him any information about the seller and refused to let him inspect the computer more closely. That night, after the shop was closed, the professor forced open the back door. After turning over the laptop to check the serial number, the professor realized that it was not the one that was stolen from his office. Nonetheless, he decided to keep it. The owner’s clerk, who, unbeknownst to the professor lived in a room in the back of the shop, heard someone breaking in and called the police. The professor was arrested as he was exiting the shop and is charged with larceny and burglary in a common law jurisdiction.

Of which crimes may he be convicted and sentenced?

A passenger walked out of an airline terminal with a suitcase that belonged to someone else. When charged with larceny, the passenger claimed he had made an honest mistake — he thought the suitcase was his own.

The passenger should be found: