My little sis bought a car with a bad (known) engine. There was another engine out of a car she had wrecked. We experienced a "rapid unscheduled disassembly" of the engine on the way home with it. Drove it another 12 miles with a connecting rod flailing around the crankshaft and a piston-sized hole in the side of the block. Drove it until it seized and then towed it the last 3 miles, only because we had to.
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.