Strange thing happened on the way to work

I stopped in front a work to help a clueless kid with a Honda 4 cyl. He said the engine "sounded funny". One spark plug missing and the wire hanging. I told him it wouldn't hurt to drive it 6 miles home like that. I suggested a mechanic didn't tighten the plug enough, being fearful of stripping the aluminum head, so first try putting another plug in. Of course, a mechanic could have stripped it and didn't bother to relate that info to the customer.