They sigh as they walk around a wall with the same graffiti on it like the other wall that they have already walked around or by.

Nothing suspect.

Any yet,something make them to just let their water bottle around the wall before walking away from it.

A few minutes later,the wall was the same along with the exactly same graffiti on it. But this time,also the water bottle that they left.

They look at the graffiti. Really look at it,this time.

The graffiti pictured a person walking down so many of these walls,only to find out that in reality,someone was placing or moving things around to seem like they were or were not moving.

Just a trick.

A trick that they ‘broke’.

After they did this,they walked,along with their water bottle away from the graffiti.

The next day,it disappeared completely.