The only thing more asinine than "ducking" is that someone would feel the need to make up rules for it. 
https://www.msn.com/en-us/autos/ent...&cvid=dd973318976448e084da353a14bcb815&ei=104

https://www.msn.com/en-us/autos/ent...&cvid=dd973318976448e084da353a14bcb815&ei=104