Joshina asks her husband Derek for money, so she can go and buy groceries from the local store.
She asks for 50 dollars but Derek tells her, "You out of your mind?". He then pulls her to the mirror, and says,"I'll show you something. This 50-dollar bill is mine and the one you see in the mirror is yours. Am I clear?"
Joshina says nothing and goes out.
That evening, Derek finds the kitchen full of groceries. Angered, he demands from his wife where did it all come from.
Joshina beckons him to the mirror & pulls her skirt up. She says, "The one in the mirror is yours. This one is for the grocer."