I also had a missed call today and when i called back the first thing I hear is press 1 do be on the do not call list,lol,kinda gives them away ,asking before I even hear who called. Needless to say I hung up.
I got this call, mind you this is my iPod and the left a message and I could only make out heavy breathing for like 5 sec, I'm 15 scares to death! I'm just gonna let it be I have gotten it multiple times, but it's best to keep in unsaid before something goes bad... :o