i had something similar happen a couple yrs ago to my taurusaurus....i went to pep boys to buy a pos battery cable and was gonna install it in the parking as all good mechanics do
...my box end wrench made contact with the solenoid and started sparking and cranking the engine...i ran to pull the key outta the ignition and realized the key was in my pocket....only way to get the wrench lose was to open a can of woop ass and karate kick the wrench off the bolt.....hiiiyaaaaa!!!! there went the wrench....and a bolt that sheared off the solenoid
...needless to say pepboys kept my car that nite
with my contour the starter has yet to go out but it is on my list of replacement parts as the car goes under renovation
