The Walking Dead2010

[Rick waits at the barn as the group searches for Aaron's friend]

Aaron:
When the world was still the world, I worked for an NGO. Our mission was to deliver medicine and food to the Nigel River Delta. Bad people pointed guns in my face every other week. You're not bad people. You're not going to kill us. And we're definitely not going to kill you.

Rick Grimes:
Just because we're good people doesn't mean we won't kill you. If the five of them aren't back in an hour... I'll put a knife in the face of your skull. [Rick closes the barn door]