Running car

"I went outside our house today and saw that Ed's car was running.  But we had just watched a movie so I knew it had been running for at least a couple hours", Allison told our friends.  "When I asked Ed about it he ran outside to turn the car off.  He came back and explained that he had left the car running with the heat on to dry the seats, but he forgot about it and left it running the whole day."  "Why did he need to dry the seat?" our friend Karen asked, looking at me.  "I had left some food in the car, so it stunk, so I left the windows open, and forgot about them so they were open overnight, and it rained..."  Then it stunk again...