Before you push someone down the subway stairs because they are looking at their phone (ugh, seriously, can't you wait five seconds? Some of us are trying to escape this swamp hole), take a moment to read some of these suggested etiquette rules compiled by the good citizens of AskReddit. You'll feel less alone in your frustration with humanity, and it couldn't hurt to make sure you haven't accidentally been annoying the hell out of everyone, too.