"However, neither practice is something that any of us should recommend to our fellow members."
You have totally missed the point of the thread. The question was, "What do you do...", not what do you recommend. I gave my method, take it or leave it, no recommendation at all. And, yeah, I pointed out one of the more irrational fears too.
Your considered logic on a "bomb" in a fire is misplaced. As a one time volunteer fireman/rescue squadman in a rural area myself I can assure you that few are worried about the small quanities of 'GUNPOWDER-AMMUNITON-RELOADING!" stuff someone may have. Or for heaven's sake a water heater with the over-pressure valve locked down - that's quite a reach!
Firemen do worry a lot about cans of flammables such as paint or hair spray and spray "butter", sealed solvent containers such as paint and lacquer thinners, canned fuels such as propane, LP or natural gas lines, etc., all quite common in most homes.
Spout what ever it takes to make you feel good, it's all pretty much harmless in the final analysis anyway.