Actually shouting at someone helps.
The dude in question had been stalling for two weeks. On Wedesday, he let me hanging twice for three hours, before going home early.
So on Thursday I called him up and explained, at first quite civilly, that I did not appreciate this. He began to make excuses and tried to argue that he, really, was not to blame and that he would – very graciously – attempt to do what I’d asked of him. In maybe two weeks or so.
I think they must have heard me three buildings over.
I am not proud of myself, but this guy finally did what I had wanted him to do.