I have noticed the F/A's on Delta have become more specific. They said we had to help those off the slides but nothing about staying on board and be the last person off the plane. They did mention on the MD-82 that it is Delta's policy to pull the door off and rest it in the exit row seat. I guess they are worried about people tossing out the door and damaging it during a minor evacuation.

I've also experienced that they want the window shades up during takeoff and landing. That makes sense in order to check for flames.

Part of me wishes you could take a class on the subject and get certified where only certified people can sit in an exit row.