Originally Posted by catocony
What happens if you fart while in the puffer machine? I usually hold my gas for the TSA agent when they bend down behind me to wand the back of my slacks, but if I'm in the puffer and let loose a silent but deadly, can I cause a security alarm?
Methane is probably not one of the items the puffer checks for. If you had enough methane gas to cause a real explosion, you'd need to keep it compressed and in a metal canister, which would have alarmed at the WTMD.