Doubts extrapolated from a notebook

They say [Matta interviewed by Cecilia Sredni de Birbragher, Revista Nexus, Bogotà Jan/Mar 1998] that if you take a chicken and draw a line on the ground in front of it with a piece of chalk, it'll stay there and won't move until something else happens.
So, i wonder, what would happen if you did the same thing with a human, say, with an old lady? If while she's walking in the street you just run over and mark a line on the ground in front of her? Will she also stand there until something else happens, not knowing what to do? Or would she carefully try to walk around the line?
In a perfect world i'd stand next to her, pull a gun out and shoot in the air.
And watch her sprint.