Do shops still sabotage cars for profit?

it is truly sad that there are way too many mechanics doing that. My parents had a '96 windstar and the engine went, so under warrenty they took it to the dealership and got a new one. 2 months later BOOM Piston 2 goes whee thru the block. upon inspection the dealership forgot to put oil in the new engine. Then they try to play it off that it was my parents fault for not checking and putting it in. lemme say noone in my family has bought a Ford from that dealership since