You head brazenly across the room. It’s wide open, so you figure you’ll spot any danger before it reaches you. Heading around the long way or through rubbish… doesn’t feel practical to you. After all, isn’t the shortest way to any point --- in this case, escape --- a straight line?
You’ve gotten half-way across when you hear a squeak. You freeze, and you turn to stare at a distant desk… and from beneath it comes tromping a rat. It’s a small rat, a house rat… but it’s still huge compared to you! Your body is about the size of its head. At least, you think in a strangely detached way as it nears, it isn’t a sewer rat.