Jacob has no standards

"Like, do you really have to do the whole scientific method stuff to just test it out?"
David considered this for a few moments. "Hm...I suppose not. What you got in mind, son?".
"Well Dad, couldn't you just turn into a random neighbour? And, I dunno, maybe one you find..." The son gave a cough. "appealing?"
"Appealing how? And why?"
"Just like, someone you'd want to turn into. Someone you'd want to know a little bit more intimately, maybe. Could give you a better understanding of how they feel."
"Feel when?"
"Um..." To be honest, Jacob was still finding it hard to concentrate, considering how weird it was to see his dad's invention resulted in this kind of transformation. He finally found the words to say, after a few seconds of silence. "Feel it any way you want, I guess. Well, as much as you can transform. You can also use it as a test to see how accurately it can actually transform you. I can say it did pretty well alreadly..."
"Son, are you hinting at something specific I should do?"
Jacob quickly shook his head. "No, no, I'm just saying you should transform into a neighbour...You know, to test the capabilities of this device."
"Who do you suggest then, son?"