It would be so easy.

Today I took a ferry to work. Usually there are only a handful of people on the ferry, but today there were about 30 high school students on a tour. Most of the female students went outside to look at the beautiful water, but they left their purses on the seats. This would never happen at home! I wonder how much money they had...

P.S.
I just saw an empty car with the engine running at a convenience store. And the driver's side window was down!