You look at her and ask, very calmly:
"I wish I was the age I was before, please?"
Red grins at you.
"That I can handle"
She stares at you and starts whispering something. You feel yourself changing, but not the way you expected. You realize the folly of your wish, you didn't specify before what...and now, as a baseball cap forms on your head and your t-shirt proudly displays Barney, you realize that was pretty dumb...