>Can you also guarantee with absolute certainty that you'll never forget them anywhere another person who's unaware of the contents or the danger could find them?
Why does he need to do that?
We're talking about a product that lightly injured ~20 people for ~8mil units sold and seriously injured ~3.
Should be be keeping his champagne in a protective enclosure?
If you have younger kids, or software engineers, around, you definitely should keep your champagne in a protective enclosure.