"This is all your fault!" they shouted in unison.
"Stop that!" they shouted still in unison.
"No, YOU stop that!", each Joanna said still simultaneously.
"Stop copying what I'm saying! I'm the REAL Joanna!", both Joanna continued.
"No you're not, I AM!" each responded at the same time.
It looked like the head powder duplicated every fiber of Joanna's head and apparently their thought patterns too, remained identical.
Unable to break from their identical thought patterns, each Joanna became more and more frustrated as they both keep saying the same exact words at the exact same time.
"Stop that!!! It's so annoying!" both continued together.
"Shut up!!" "Shut up!!"
"No, you shut up!!" still in unison
Their frustrations reached a point where each Joanna just wanted to slap her other head to shut her up.