Is it normal that i think of weaving blades everytime i travel?

when driving/in a travelling vehicle, i imagine two blades (usually seraded) weaving themselves in and out of the lightposts/telephone posts/anything on the side of the road that exceeds about 3 feet. I usually try to incorporate the beat of them weaving with whatever kind of music is playing or the musing i'm thinking of in my head. I try to stop myself from doing it because it get's very distracting. I feel the only way to stop is to act like i'm ripping the blades from my sides as if they were attached to me. i then stop, only to find myself doing it ten seconds later, trying to resist, but to no avail.