To the original post, because it has so much yeast in it, use a syphon as recommended. If you are using a one gallon carboy you will need a small syphon, the bigger ones won't fit through the neck of some carboys. But that is not why it is over gassed, that is because fermentation was unfinished when you bottled. If you were brewing with honey in the original brew it has a very complex structure and can take a long time to fully ferment.
Never heard of a single death from exploding bottles- obviously not best to let them mature in the baby's cot, but if the are in the cupboard it will just make a mess. It's all about experiments and stuff ups. Most of us have exploded a bottle at some point.
The great thing about one gallon is you have not lost much, just have another go
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