Yeah, I get it. I will sometimes get confused on stuff (like is a Trans-man a he or a she? Not disrespectful but I honestly don't know if a Trans-man was born female and transitioned to make or was born male and transitioned to female).
I used to work in a large corporation in a heavily regulated industry so I had SOOO many trainings(before leaving the last time I checked my training transcript was 38 pages long) . One time a long time employee accidentally left a filter with explosive dust on it on a shelf, it got knocked off, sparked and caught fire. Luckily the fire was quickly contained and didn't even need the fire department. BUT... Everyone now needed 2 days in person training about dealing with filters and flammable stuff. That type of training sucked.
Tldr; Don't leave things that react with oxygen/air unattended.