My wife’s car was rattling.  Probably the exhaust.  As she pulled out of the driveway, she heard the rattling stop.  Of course, this was after she heard a CLANK.  Then I found this in the roadway.  What do you think it is?
 
	
If you give up, it’s a catalytic converter heat shield. My friend guessed without even seeing it. Awesome.
Same shit fell off my car the other day, so pissed.