Phat Tyre Blowout!

Okay this is the first time this has ever happened to me! I was digging out a few beers of the Fat Tire clone to send back with the MapleGrovers and found four of them had "sploded". I'm surprised this hasn't happened before because I have never measured the gravity of my beers and just relied on the 1-2-3 method and the airlock activity for bottling time. What is weird about the Phat Tyre is that I kept it in the secondary a lot longer than any brew before.
As stated, the Maplegrovers were back for family obligations and we had a little rib fest to honor the occasion as well as snapping a few family photos for posterity.