The phrase “rocks fall, everyone dies” from yesterday’s DMotR is a sort of running joke on various RPG message boards. In the comments of that strip someone pointed me to this strip from the webcomic Something Positive. As this person points out, that probably isn’t the origin of the joke, but it’s probably what popularized the phrase.
I thought it was pretty cool to see, but later I realized that I had (inadvertantly) used a punchline used elsewhere, and that this might look like bad form to some. So, I thought I’d give proper credit and an explanation here so that it’s clear I’m not going to go around stealing everyone else’s jokes now.