DRY = Don't Repeat Yourself. It's a software engineering principle* and a reminder. Just because he is watching a movie my son loved as a child does not mean I can mention it to him again. I already told him that. Same story over and over. I was enjoying a happy memory and wanted to share the laughter of that day. Please don't in the future.
*Thank you Mark Snead for the info on the software principle. It is a variation of the principle I know as Only Handle It Once.
