Erm No, the given example featured an adult and a child,
“The adult walks into a room and finds markings on the wall”
This tells us the adult is not the one who drew the markings since they are the ones investigating how the markings appeared there! To draw any other conclusion from this example would mean you are ignoring the fact the example is set as the adult investigating an issue which they did not cause.
Go ahead and ignore this crucial bit of info from the example just like how you’ve ignored facts from this BTC topic. I won’t take you seriously if you do this that’s for sure.