Annoying

What is it about 1) people gulping, chomping and slurping while they eat; and 2) people playing their iPods/MP3s loudly that is SO JOLLY ANNOYING? I'm usually pretty calm about life but I reckon after 5 minutes of those two noises I'd be willing to commit murder. If anyone ever frames me for a crime the police won't have to play good cop/bad cop to get me to confess. Just lock me in a room with a spaghetti eating music lover...