Many times I hear the phrase "what do you care, it's a rental!" People who buy used cars tend to avoid ex-rentals.

Once a group I was in was staying in a hotel. We were all heading out to dinner, and one person came out of her room, leaving the light on. I asked why she didn't turn out the light. She replied: "why should I? I'm not paying the electric bill."

Apparently that's pretty common, as most hotel rooms I stay in these days require you to insert your room key into a device that enables turning on the lights, so they turned off when you leave.