Back in September 2010 I had a freeze plug shoot out of the block in my 9 second '69 Dart right after I hit second gear. I don't know how I kept it out of the wall and it scared the $hit outta me.
Now I but JB-Weld around my freeze plugs.

1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual