Flies. There isn't a more annoying species on the face of the planet that needs to disappear right now. The live only 2 or 3 days thing is bullshit. When they get in my house they stay for about 2 weeks and are usually replaced by another one. They ruin my meals outside and pretty much every other outdoor activity. One time I had to get out of bed to murder one because he kept trying to fly into my ear. One of these days I will develop the chemical or virus that kills them all.