Car rental companies in Japan began noticing last summer that some customers were putting very few miles on their vehicles, so they conducted surveys to find out what renters are using the cars for, reported The Asahi Shimbun, and discovered that one in eight renters were using cars for something besides transportation, to wit: napping (most popular activity), a little privacy for talking on the phone, eating lunch, watching TV, putting on Halloween costumes and doing stretches said to reduce the size of the face. 

One anonymous respondent admitted she uses rented cars to store bags and other belongings because coin-operated lockers are sometimes all in use. Renting is cheap in Japan, costing only a few hundred yen (several dollars). At least they were honest about it!