Wheely Good Time

I was innocently driving down Woodward today when suddenly I saw a tire rolling and jumping its way across multiple lanes of traffic.  It had already passed in front of me - no danger of me colliding with it - so I looked around for a car that it could have come from.  Finally I spotted a truck slumped in the left lane of opposing traffic.  The driver had already exited and stood in a trance-like state as he examined his vehicle with a very puzzled look on his face.  Could he not see what the problem was?  I came to a red light soon after and watched in my rearview mirror as the guy, finally realizing why his truck was not moving any more, located the errant tire (now on the shoulder of the road) and ran after it.  It was then that I noticed the driver in the car next to me.  When he saw me looking, he launched into an elaborate pantomime of how he'd felt when he saw the tire careening toward him: Aaaah!  Oh, no!  I'm going to die!  It was really entertaining but then the light turned green and the show was over.