When your kids are looking at University to go to.
At one time, I had to do a couple of resits in the summer. I obviously didn't do much revision so, panicking, came up to Bradford to do a solid day's worth in a Bradford Hall (hall-of-residence) room before my first exam. I could hardly concentrate all day because of the racket coming from the building of a new block of halls (Shearbridge Hall) twenty yards away.
They knocked down Shearbridge Hall about four years ago and Bradford Hall last year.