Walter explains his invention

Frank found Walter in his laboratory basement.
There, Walter showed him a device that Frank considered completely impossible to function.

"Walter, are you okay?"
"Yes, believe me! The device works!"

Frank shook his head in disbelief.

"Do you want to try it out? I already have a scan that I could turn you into ..."

"No, stop it!" came from Frank. "You don't seriously want to tell me that you can transform yourself ...".

Now Walter was offended. "Oh yes, Frank! To prove it, I'll just transform! Namely ...".