Pretty sure it happened to everyone, you lacked time to prep tonight session, and now the first player just arrived
Bonus point if you explain how to do it when tired.
4 points
Yeah. Or video game levels you love, or fiction, or anything. As long as it’s something you thought was badass when you were dealing with it, then you’ll probably have it fleshed out already in your mind so you can put your main focus into making it badass when your players are going through it, not just fumbling around with encounter tables or whatever.