The last one to touch the TV/car/ machine is to blame for any subsequent issues
“She was fine when she left here.”
To those who dare to point out to the people of Belfast that the Titanic was a ship that sank and little more, there is a standard refrain:
“She was fine when she left here.”
— Eamonn Mallie
More on same line at the Time magazine article The Titanic: 'She Was Alright When She Left Here'
I know this phrase is the inverse of what the question asks but might be interesting, to say something like ...
The outgoing administration says the economy was in great shape when they left office, just like the Titanic was fine when it left the shipyard.*