Did you ever ask your friends what songs or ringtones they use when you call them? It sure is telling if you knew what they were. Maybe you should call them when your sitting by them to see what they are. Perhaps it is a very bad song, and you would know they really did not like you. Or perhaps the ringtones have romantic tones to it and you did not know your friend of the opposite persuasion saw you this way. I think it might be fun, but then it might backfire and you would end up being upset. Or maybe you would not want them to hear yours either.