1. The car’s display tells us it’s 5.05pm and 5.5°C.
2. He’s had a hard day – first starved overnight then an operation to remove nearly all his remaining teeth. He’s hungry but his mouth hurts too much to eat and he pulls frantically at his gums with his paws, his claws. All I can do is give him a hug and take him to bed. He calms down and curls up next to me. When he awakes, he eats his food and looks at me with happy, shining eyes.
3. Finding the most efficient solution to a supply and demand problem.