IF U HAVE MY CELL #: If you text me and I do not text you  back, that means I did not see it yet.  That means don’t drive an hour and show up at my door unless I’ve acknowledged I know you’re coming and I’m available.  Just because my body is in the office doesn’t mean I’m available. I acknowledge every text I see as soon as I see it because everyone deserves acknowledgment. But not everyone who appears at my door unannounced deserves my time.  The same with cancelling meetings.  If I did not respond to your text cancelling a 9am appointment, I’ll be there on time and may not look at my phone until 9am when I wonder where you are. Sending a second text is a courtesy that gives me an extra chance to hear the text ringtone come in, and would be mucho appreciated.