is it possiable to break a flywheel by crossing sparkplug wires?

What is your question?

i had my sensors replaced and the mechanic removed the sparkplug wires to remove and replace 4 sensors. after replacing them he replaced the wires to the sparkplugs and turned the key and this HORRIABLE sound like grinding metal. he said hold on, switched the wires and tried the key again, nothing happen... He looked under the vehical and there were metal peices that turnd out to be teeth from the flywheel.. the main questions are how can that break the flywheel and if so how? and is there another car that the flywheel can be interchangable with the corsica flywheel