Some shampoo is so good that children are not allowed to buy it and people of faith regret its influence in their lives. No one there has ever heard of it. All types of people use shampoo. Very poor people use shampoo made of old mules and ash, and very rich people use shampoo made of poor people. Men get important vitamins by eating that shampoo.
Imaginary people use shampoo made of pure light.
Dead people use shampoo that comes in a green bottle. You can only get it through the mail. No one knows what shampoo does. No one knows where shampoo works, or how much it makes. Some people think that it makes money simply by existing in all times and places, while others think shampoo is living off an inheritance.