Battery relocation- Does anyone know of an actual hydrogen sulfide explosion incident?

Had a tractor battery blow on Me, not that old, and the very visable reputable brand. Did not want to take a charge, in a tractor that never drained batteries, next attempt to start and bang! Split the case, obviously had a defect, probably a weak/cracked cell bridge. Battery just sitting on My buddy's trailer, used for winch duty, bang! Out of nowhere. I have multiple stories of these, and even Optimas melting down to know this; it is foolish to not vent the battery/box because those gasses are extremely explosive....and batteries, even top quality ones, can F-up. And I have run a trunk mounted battery in a street ride, w/a nitrous bottle keeping it company, chew on that scenario for a sec.......