Also, for your version, on a number line or Cartesian plane, the distance from -1 to 1 is 2, not 0

Yeah. I cheated. You have to either deliberately misunderstand how to measure vectors or else drop a minus sign for it to work my way.

(Or, from my previous example, you could just frame it as you’re getting the hypotenuse by measuring between |AB| and -|AC|𝑖 instead of the way I framed it – but that makes it more obvious that you’re fishing for a particular answer.)