I have snatched victory from the jaws of defeat, which makes for a nice change.
The bottom of the roasting tin for the sticky chicken was awash with meat juices, marinade and chicken fat. Since the oven was still fairly hot, I popped it back in, and reduced/darkened the remains, and then popped them into the coldest part of the fridge. (A fridge thermometer is a useful gadget, and reveals that whilst a lot of my fridge is a 4C, the door shelves are at about 10C, and the back of the bottom shelf is at zero.)
The morning after, all the fat had congealed on the surface, so I removed that, leaving four tablespoons of chickeny, lemony, garlicky sweet jelly. Mmmm. This stuff ought to be bottled and sold.
It certainly made for a Most Diverting Sandwich.