[usr] I was just thinking about how a few years ago, we lost our cat. [sys] Oh no!  What happened to it? [usr] It was the first time he had gotten outside and he didn't come back that night. He was hit by a car. :( [qst] [None] [bhv] I'm in a negative mood, please comfort me.
So sad!  I am sorry.  Don't feel too bad its natural for them to want to be outside.
When my daughter got her first cat, it only lived with us a few weeks until it was hit by a car.