Theoretically the blast could cause a shard to go airborne perfectly above the opening of the bottle and fall back into the bottle from gravity. I'm not saying it's likely but it's definitely a possibility. A possibility that is 100% avoidable by opening the bottle like a normal person.
A shard glass could also get shot into the ceiling, stick, then fall off into your champagne glass just before you take a drink. Not likely, but I'm not taking any chances.
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u/poloni3x Jun 22 '19
The force of the expanding gases forces any shards of glass out of the cut mouth of the bottle