This humanoid, acting smart, far from it. He cut a string to represent the length of the old blind being replaced on the door. The string felt like it was the right size so he placed it in his front pocket.
He drives to Wal-Mart to purchase the new blind, of course that is not all he picked up. He measured the box with the string, checks out, pays for the goods and drives back to the apartment.
He puts all the stuff away, opens the box to install the new blind, and it is too short. A humanoid for sure. Well it was only $3.50 so I am sure, not today but tomorrow, he will go back and try again to get the right size.
Oh the humanoid was me of course.