"MORE VOCAL IN MY MONITOR!" – A Sound Guy's Nightmare!

Ever hear that terrible squeal at a live show? You know, the one that makes the crowd cover their ears and cringe like someone just drug their fingernails across a chalkboard? It's not always the sound guy's fault! Most of the time it's the artist who wants, "MORE VOCALS IN THEIR MONITOR!" haha. Thank God for mute buttons! When you get too close to a speaker with a microphone, that speaker is going to get mad at you and scream. Speaking of screaming, what the hell is this guy saying????