April Fools Joke

A young blind boy is being tucked into bed by his mother. The mom says "Now Billy, pray really hard tonight and tomorrow, your wish will come true!". Billy says, "Ok mommy." and goes to sleep. The next morning, Billy wakes up and screams "MOMMY! I'm still blind, my wish didn't come true!", the mom answered, "I know it didn't Billy, April Fools!"