I got a hybrid rental today and the guy working at Enterprise drove it up for me. I just got in and drove it home. I knew about the push button so I used it to turn off the car.
3 hours later, I was rushing to get to an appointment. I got in the car and pushed the button and didn't hear the engine so I was like...wtf?
I spent an hour pushing the button and looking through the manual until I finally realized the car is a hybrid and it starts off in electric mode.
So I shifted the car into reverse and drove off. FML...I missed the appointment and had to reschedule for next month.