the (insert witty name summing up person described)

One thing that never fails to baffle me is a character for whom I can't seem to come up with a catchy yet symbolic name, but whose definition would be something along the lines of the elusive, suddenly busy im-er.

A conversation with said character goes a little something like this:

Friend: hey!!!
Me (responding immediately): hey, what's up??? how's everything going?
Friend: (no response)
Me: (rolls eyes after 15 minutes, growls, exits chat box)

I can understand the occasional and unforeseen emergency that may prevent "Friend" from responding. Your IBS is acting up again and you had to sprint to the bathroom. The boss has appeared out of nowhere and is looking over your shoulder. The fire alarm has started beeping and you had to stop, drop and roll before crawling beneath the smoke to put out the fire in the kitchen. Carbon monoxide has invaded your home and you have passed out, possibly to never wake again.

I can understand it happening once in awhile; I take offense, however, at the repeat offenders. My question for you: why bother going through the hassle of clicking on my name, opening a message box and messaging me if you have no real intentions of actually maintaining a conversation involving more than just you? Are you trying to come across as popular or important? Were you hoping I wasn't there are were just saying hi as a courtesy? It's like calling someone on the phone, waiting til they pick up... and then hanging up without saying anything. Pointless!