Changing oil and engine idling after long trips?

obgraham, I guess you were referring to my post and maybe it wasn't written well. I don't idle my truck usually more than a couple of minutes before leaving when it's that warm. I generally crank it and within less than a minute or so I'm gone. Ocassionally (ok, maybe frequently) I'll forget something in the camper or check the rig, so it may idle another minute or so. I really don't do it to annoy anyone. My Cummns 6.7 is really quite quiet. I'll also try not to talk while outside.