Slimes nothing, I swear you can hear that spider shriek from 10,000 blocks away. And it always either freaks me out or pisses me off... SHUT UP you gorram spider!
Hahahaha that is so true. My main world has huge, spider-proof walls, and when those things start yelling, I'm usually doing something else and it would take 60-120 seconds just to go find the thing and give it the sword it wants so badly. Like fingernails on a blackboard.