Invisible Truck

An invisible truck that randomly hits people. When you see it you are supposed to yell Damn, this word often prevents it from hitting you and makes it hit the person with you or next to you.

Dean: DAMN ITS THE INVISIBLE TRUCK!
Sophie: OW I JUST GOT HIT.
Sarah: What..?
Sophie: DIDN'T YOU SEE IT! THE INVISIBLE TRUCK JUST HIT ME!