I text message my girlfriend when she's at work. She's a theatre nurse and I suspect phone calls during operations aren't the done thing ... besides, it gives her something to find from me when she gets a break. I also text my son when he's at school so that I don't have to worry about whether he's in class or not.

That's it.

But, being a grump, I text in full, no abbreviations. My son no longer texts that way to me because he found he got frowned at ... but I've noted that his messages to friends are pure gibberish.

Richard
(mind you, having re-read this post, there's enough jargon in there to make this post gibberish)