It's incredible, isn't it? I had something similar happen to me last week. I needed some electrical work done and my electrician said that he'd come the next day at 4:30. I waited. And waited. And waited. Finally got ahold of him at 6:15 and said "Are you coming???"
He said "No, I won't be coming tonight".
I said "We had an appt.!"
He said "Well, I drove by your house at 4:00 and didn't see any lights so I assumed you weren't at home".
I said "Why would you assume that? And since we had an appt., why wouldn't you have called to see why I wasn't home? (I was home. I came home early so that I wouldn't miss the appt.) And why didn't you ring the doorbell or knock?"
He said "I didn't feel like getting out of the truck. I guess it's my fault" in a sarcastic tone.

I don't believe a word of it. If he did only drive by, why he would admit that is beyond me. That's the epitome of laziness. I called the guy who remodeled my kitchen, he said he'd be there at 8:00 AM the next day and he was right on time, did the work in 10 minutes. I should've called him to begin with. He advertises "No job is too small". Now that's a work ethic.