I hate when bands put siren sound effects in songs. If I'm in the car, I always think for a split second that I need to pull over to let the police cars/firetrucks/ambulances go by. It's dangerous!
A friend of mine recorded his voicemail message on the street, so not only is there a buncha ambient loudness, the whole thing starts with a horn honking. Scares the living crap out of me. He doesn't deserve to have messages left for him. Am I right people.