A Construction Emergency?

Nick the Builder and his crew came last Friday and took down the gutter pipe and prepped the existing fascia boards to accept the rafters for what will be the new roof on the screened porch. I expected them around 9 am, but they rolled in around noon and worked until 7 pm. They left with a promise to be back at 9 am on Monday. Well, they arrived closer to 11:30 am, but at least they got the bulk of the framing up.

I'm already in love with it and was eagerly awaiting their arrival this morning (Tuesday) when I received a text. They "might" be able to get here in the afternoon -- a construction emergency. Emergency? Short of a building collapsing on somebody's grandmother, I'm having a hard time imagining the shape of a construction emergency. They didn't get here this afternoon. They left several large saws, nail guns, tool boxes and other stuff here, so I'm assuming they meant to be back this morning. Whatever the emergency, they were not fully armed. Am hoping they'll be back in the morning, but not counting on it.