I worked for a Honda dealer when i was younger,we had a guy come in to get 4 new tires installed on his Civic,he was getting ready for a long trip down south towing the civic behind his huge 35+ ft diesel pusher,he hooked up and left,he returned about 1/2 hour later,he had forgot to put the car in neutral,this was at crowfoot honda and he went straight down the 1a from our shop,so was doing 100km when he noticed all the smoke,he traded that one in that day and left with a new Civic,one of the techs bought his old one,was that motor ever a mess!it must of hit 10,000 rpm and then flew apart from top to bottom!