Why does time go fastest when you're running late?

Why does the urge to pee start right after you flush and get up?

Why do people ask you to do messy things right after you wash your hands?

Why do kids always want to know how far it is to get somewhere, they start asking when you'll leave two minutes after you get there?

Why do pigs smell so bad when they're walking around but bacon and ham smell so good when they're being fried?

Why do you feel most tired when you can't lay down for a nap?