Wow - you are lucky it happened the way it did. Glad you were not moving it when that happened.
Did it go from cold to hot, or perhaps it had a hairline crack in it from being bumped or something. I don't think PBW or Oxy would be the problem if everything else was ok... Seems unlikely to me. Either way - count your lucky stars.
Kegged/Serving: Porter, Session IPA, Dark Mild, Double Citra IPA, Oatmeal Amber Ale, Bo-Pils, Oktoberfest, American Brown Ale
Bottled: Barley Wine, Sour Belgian Golden on Cherries, Sour Cherry Stout
Primary: Heady Topper Clone, Session IPA, Porter, Plain ol American Ale
Future Brews: Heady Topper Clone, Ordinary Bitter, Dortmunder, Pilsner, Scottish 70, More...... More....... Beer.......