Whatever happened to saying bye?

What has happened to saying bye?I find that most people leave without saying anything and 10 minutes later you notice and say, "Where'd (enter name here) go?"People just leave without saying a word!Or vice versa materialize out of now where and then you look next to you and have a heart attack.Sometimes though people say bye and no one notices that they either left or said bye.Maybe that's one of the reasons feel unloved?I don't know, I'm no phsychologist.Bah!Live well and prosper!Those with relationships with those special people huzzahs!L8t3R!?!?!?!?