The Loudest noise would be a Yaoi Fan girl that is screeching or it might just be a Briauna screeching in the distance , if you hear that Run
Guy 1 - "Man what the hell is that?"
Guy 2 - "It's like the loudest noise that I ever heard "
Guy 1 - "Its ....its a Fan Girl..."
The two guys look at each other in fear while the screeching is coming closer