I remember I got the wrong number once when I was trying to reach a friend. And who ever I called called me back the next day and started shouting at me asking how I got this number. I told the person I must have mixed up the number and called that person by mistake and that jerk of the person just kept on yelling at me askng once again where I got the number from when I already answered the questioned. So I said it was a mistake and I hung up.