Bad day on the assembly line?

I`ve posted this before , a master sgt. I knew in the A.F. ordered a new ford station wagon , before he came back from veit nam, picked it up at the factory, and drove it to the base. It always had a rattle in the drivers side door. He finally made the ford techs tear the door apart ( for the 4-5 time) w/ him watching, they found a coke bottle swinging on a string inside , wouldn't rattle w/ the window down, but drove him nuts w/ the window up. Inside the bottle was a note saying/"how long did it take u dumbasses to find this !" TRUE STORY!

By the way , my wifes 2017 ford w/50,000 on it is in the dealership for an engine replacement , WATER IN THE OIL!
I believe it Bob found dead fish in heater vents with a note like that.
Sorry to here about your wife's car that really sucks.